Renrich,
That's a very broad statistic upon which to extrapolate. There were only 6 F4Fs at Midway and they were in the last 2 divisions to enter the fray so it's perhaps not surprising that they had a better chance of survival because all the IJNAF fighters had swarmed on the first 2 divisions which were all flying F2A-3s.
Now, to answer the specific question of the thread:
The Buffalo was the first modern fighter monoplane to enter service with the USN. The Buffalo had retractable undercarriage, enclosed cockpit, flaps, was better armed than its contemporaries (which were all biplanes) and, due to its large cockpit canopy, had better visibility than many later fighter aircraft. Without the Buffalo, the F4F would not have existed - the Brewster design so comprehensively beat Grumman's initial biplane design and a rapidly-developed monoplane successor that it forced Grumman to come up with a better design which ultimately became the XF4F-3.
However, like so many "first of breed" deliveries, the Brewster design had problems, some of which were the fault of the aircraft manufacturer (like the undercarriage problems) and some which resulted from other component manufacturers (eg the engines and the guns). The point about QC made in earlier threads is absolutely vital. Brewster had shocking quality control which they never satisfactorily resolved. Labour relations between the management and workforce were poor and there was some intimation that workers deliberately sabotaged aircraft on the production line.
Hope this answers some of the questions relative to the thread.
Cheers,
Mark