Feedback needed

None of the ones you listed are the most updated versions possible.  That being said, decent models can be had with each.

I found this modelingmadness.com/.../kossherm.htm on the Italeri M4A3 -- although the builder fails to lock down the suspension (all 12 roadwheels MUST be level).  The barrel has a step in it that's inaccurate -- you're best to get a replacement barrel (contact me -- i have extras).  The Italeri .50 cal MG is anemic -- (I have better extras too).  There are other extra detailing steps if you truly want a prize winner -- but it's a fairly able kit.

Tamiya 35120 1/35 M48A3 Patton -- is known to have engineered its suspension to ride too high -- but major surgery would be required for little benefit, IMHO.  www.network54.com/.../1007506449

Tamiya 35269 1/35 M1A2 Abrams   www.perthmilitarymodelling.com/.../tam35269.htm    www.network54.com/.../1076246080     If you really want to go nuts: vodnik.net/.../m1comp1.htm

Like I said earlier, more modern iterations of those three subjects exist.  Asuka M4A3 76w VVS, DML M48 series, Dragon M1A2 SEP.   All more accurate although requiring higher levels of experience.  Pls don't be put off by this tons of detail -- go for it.  You'll be improving with every model you complete.  Best of luck to you

I got the Sherman as a gift, the other 2 in trades. Pm sent.

The Italeri M4: You might consider getting after market tracks. I've had issues with Italeri kits sitting on the shelf and the kit tracks falling off the model in pieces.

I have 2 sets for it, the kit ones, and ones similar to the kits, but in 2 pieces each, not sure where they are from.

Any one else?

With google, you should be able to bring up any number of reviews, build logs, works-in-progress. I mean, yes, you may find a few people here who have experience with these kits, but on any modeling forum, you can enter these kit names in their search features and come up with full build logs of any one of these kits.

For instance, here's my M48A3 Patton. You can even get the back issue of FSM for this. I"m surprised no one mentioned it yet.

Doog's Patton

I have read most of the online reviews, etc. Just hoping for tips, etc from those that have built these kits.

Two pieces each? They may be Tasca, and if so, they are very good tracks, glue-able with most regular liquid plastic cements. Paint with arcylics and you're good to go.