I'm trying the French aircraft tree as "
Baguette_WT" without any particular goal, just for fun.
The D.50x series was very pleasant surprise (super turning for a monoplane, fantastic main gun). The VG.33 was a pleasant surprise as well (much better in boom & zoom than specs and test flight suggested), and the D.520 feels similar to VG.33 despite a few really bad sorties at the beginning. Even the MS.410 was quite usable with defensive flying, boom & zoom and exploiting the 20 mm firepower.
Those French fighters don't seem to be well-suited for any defensive manoeuvres except defensive spiral and bullet dodging, though.
I'm looking forward to the Bloch 157, which despite its only partial armour protection and mediocre armament (for 3.x) promises to be at the very least as good as a P-47, if not noticeably better as long as you avoid getting hit much. It's likely going to rule at high altitude in if not drawn to BR 5.0 or higher.
I'll try to avoid head-on fights with fighters (other than fighters with at most 4 "7 mm" machineguns) and to approach well-armed bombers from their weak angles. This in turn means I need to look up some of the new bomber types and their defensive armament.
I expect that I'll get a 20:1 or better kill ratio in Bloch 157.
P.S.: I switched to the Japanese tree after 90:3 kills in the M.B.157. It got boring, as it's too similar to P-47 and some other high altitude fighters.