B-17 - Built Revell F - old kit, landing gear too short, Hasagawa F & G - good kits, G has Cheyenne tail gunner mod, Academy kits will let you build all versions from B thru G plus ASR version (Haven't built one yet, but have a C model on the shelf)
B-25 - Airfix - old kit, lots of rivets, but with work makes a nice looking kit, built H & J models - Have Italrei kit on shelf, looks good in the box - there's still some old Frog C models out there but the only thing I would use from that kit is the sprue for stretching.
B-24 - Over the years have built several older kit, lots of rivets, currently modifing one to C-87 configuration - airfix - old kit, lots of rivets, nose too short, canopy too square and too cl;ose to wing, don't bother - Acadamy, has kits for D thru M + PB4Y-1 (wish they would bring out a 4Y-2) Built a D and have another plus 2 H's and 2 J's on the shelf (only difference is the nose turret) - recommended
Lanc - built both the Revell and the Airfix - both old kits, lots of rivets but Airfix is best of the two - Matchbox has one if you can find it (eBay?) never seen it though
Halifax - built the Airfix kit, old but good - haven't seen theMatchbox kit.
Arado - sorry don't build kerosene burners but Dragon is probably pretty good kit
Hope this helps