Every company has it's good points and bad points, and usually more of one than the other. My personal Top Five favorites are....
1) Tamiya - still the mothership to me in almost all respects simply for the quality of fit in almost all of their kits and the low-stress ease of build it generates; they might not have the most accurate of the tiniest details but that means very little to me; if Tamiya has a negative right now then it's that they're currently charging too much for their older kits - I don't mind spending $70 to $100 for their new ones but anything above $50 for their prior to the mid-1990's kits is unjustifiable IMO, even with today's inflation issues, and unfortunately right now it seems there are very few Tamiya armor items that are under $50 each in my neck of the woods
2) Academy - this one is a bit of surprise to me too but Academy's had a major increase in quality over the last 10 years; their newer kits are very good, pretty much on a par with Tamiya; I recommend doing a search on Scalemates for the history of their kits because there's a strong chance that the new box might contain one of their older items - that's not a huge negative for their aircraft for the most part but I wouldn't touch an Academy armor kit from the 1980's or 90's with a ten-foot pole; their new ones though? I recommend them almost anytime, not just for their improved quality but because right now they're also providing some of the most affordable products right now
3) Takom - very good as well; their armor kits are great, with mostly easy building and a higher degree of small detail than Tamiya; their only real negative IMO is some of the odd little curveballs they'll throw into a kit, like that silly front armor plate for their Jadgtiger that requires some surgery on the surrounding plastic in order to get it to "snap" in correctly, or the multi-piece lower hull on their Panthers that can be tricky to align properly; these are small negatives though compared to the overall quality of their product, and they're obviously a very creative company too as shown by their recent releases of large-scale warship gun turrets; Takom has a great future ahead of them if they continue along this path
4) Hasegawa - I haven't built one in quite a while as they seem to have disappeared for the most part from the stores in my area, but I don't remember having much of any difficulty with a Hasegawa build; their overall list of WW2 aircraft is impressively huge, with a very good selection in 1/32 and a seemingly endless selection in 1/48; from what I recall from my builds the only real negative Hasegawa has is that the interior details of their cockpits were kind of bland but this is kind of inconsequential given how little can be seen of a 1/48 cockpit when the canopy is glued shut or if a pilot figure is added; very good company overall IMO
5) Trumpeter/Hobby Boss - putting both together as I believe they are both owned by the same overall company; their huge selection to choose from for armor/aircraft/ships is their main strength, even more so considering that they don't hesitate in putting out an oddball item that the other companies simply won't issue - a good example would be the very nice and, more importantly, modern A-4 Skyhawks or P-61 Black Widows from Hobby Boss; there might be some accuracy issues but the builds are mostly without any really bad issues and the end product typically turns out to be quite nice; in the case of a Trumpeter jet aircraft though I will build a 1/48 before a 1/32 one because their larger planes tend towards flimsiness in the landing gear; Trumpeter's armor kits are usually very good though, with the only real problem I ever had with them was their excessively small detailed items that would have been better off as molded-on instead; Trumpeter seems also to be the leader in terms of the putting out the popular fictional Paper Panzers, which are usually fun enough to build, and no other company it seems has really stepped up to challenge their dominance in wheeled AFVs either
Other companies....
- Bandai/Fine Molds/Mobius/Pegasus all have a lot of very good sci-fi kits, especially Star Wars and Battlestar Galactica, and I'd recommend them to anyone
- I can't recommend AMT/Round 2/Polar Lights to anyone for Star Trek kits,or MPC for Star Wars; I find these kits to be too expensive for the poor quality and frustrating builds; the molds for the most part are simply too old & create a wildly inferior product, and they are long overdue for retirement & replacement
- Italeri: built a few of them but have no plans to build one of them again; simply put the poor fits and odd soft plastic they use are too frustrating to deal with, which is a shame given their massive catalogue of available items; if you can find an old Italeri in their old-style boxes then it might be worth a chance, but do your homework on Scalemates first for their "new" boxings because the odds are good that it's another poor quality molding that hasn't been improved or revised in years
- Revell: I'd build the new (last ten years or so) Rev of Germany or old original-box Revell/Monograms in a heartbeat but I'd be very careful in buying any Revell USA products as the odds are too great that it's just another ancient & poor quality molding that's never been improved put in a new box; it's just my opinion but dealing with things like raised panel lines, wildly excessive flash, and blobby formless details just isn't worth it when there are far better options available from other companies who have equally massive catalogues and competitive pricing; I have as much nostalgic love for Revell as any other older modeler, based on childhood memories, but my willingness to go retro only goes so far; they're still selling those absolutely godawful 1/48 P-61 Black Widow and 1/32 Corsair models, and at today's higher prices too? c'mon, that's just ripping off your customers and they know it
- Dragon: I really liked their massive selection of German WW2 vehicles, but I can't think of a single Dragon kit I built that didn't have some sort of really bad fit problem; their overall level of detail is usually very good but having a build go bad due to a terrible fitting piece or because of their mistake-ridden instructions is just too frustrating; Dragon no longer sells in stores in my area for some reason, which I assume means that they were badly overcharging the distributors and retailers for the "privilege" of having Dragon products on their shelves; I can't say I miss them all that much and I see no reason to order online from a manufacturer who apparently has such an arrogant attitude towards customers in North America
These are all just my musings on the subject. I'm older now and tend to get all a-ramblin' on subjects like this.