yes, odd...like the P-1 Hawk at the head of the list for 1933...it was a 1920's era aircraft and the Boeing P-26 would better fill that slot for early 1930's or better still, the P-36 for the late 30's. Both the P-26 and the P-36 actually saw combat in the early stages of WWII.
As far as the XP-58 is concerned, it was a technical nightmare with too many problems, hence only one prototype made and was eventually cancelled. Why not the P-61 Black Widow, which was a proven performer?
Then there's the Axis aircraft...
You have the prototype Ju187 for ground attack, which was never even built. Why not the actual Hs129, which flew countless successful missions over the Eastern front?
Also, the far right column of the Axis aircraft...I am not sure what to think...it starts out with a Do22 seaplane which was never produced in any quantity, and ends up with a Fw300 concept that was never built?
Then in the Jet list, it starts with a Me262...why not the He280 that was built and flown first? The Ho229 was still in trial stage when the war ended, so it's potential will never be known. The He280 on the otherhand, proved on several occasions to have a real potential as a fighter.
These are just observations of mine