This is a very good thread for newbie information. I think I actually understand most of it!
Although I look at both Tojo and Tony and I can't say I like what I see, I recognize that you guys have a lot of experience so I value your opinions. I think I'll hold my nose and choose Oscar Ic, Tojo (is the 2x40mm model any good or is 2 accuracy really 2% accuracy?) and research Frank etc.
My newbie eyes tell me that the Sam isn't much better than the A6M8, but it seems most players think Sam is a substantial upgrade. So I'll go for Sam as well.
Shoutout to Lowpe, whose painful Soviet AAR I have been reading.
Thanks to PaxMondo for many informative answers. Although I will criticize one thing. What's with your avatar? That girl has a very strange face!
The Tojo is underrated by those who do not make much use of it, in my opinion. The IIa is a nice bridge to the Frank, and the IIc remains a very good CAP fighter into the late war because of its good climb. With radar, the IIc can bring more numbers to altitude than other fighters, including Frank. CAP is only helpful if it can reach the altitude of the raid in the time allowed, and Japanese radar is never very good. The Oscar is serviceable against early war P40s and P39s, but all models of the Oscar are outclassed by everything else the allies have.
The Tojo IIb and the Tony 1D are good heavy bomber killers, and all models of the Tony perform adequately against fighters: the Tojo IIb, not so much because of its poor accuracy.