I agree, the Brewster Buffalo is one for the "Aviation Myths that will not die" because of it's bad press...but there are several threads for that subject alone.
The Curtiss-Wright CW-21 Demon has been mentioned before...not sure why it isn't showing up. (Variations: CW-21, CW-21B, Model 21, Model 21B). I just used Advanced Search with the keyword
CW-21 (search entire post selected) and returned 4 pages of results.
I also just searched for
F2A and had 9 pages of results returned. Not surprisingly, the second hit was along the lines of "worst U.S. fighter"