Okay, now for the real hypotheticals...
These are not fantasy dogfights I'd like to see, these actually COULD have occured.
P-80 vs. Me 262 - A couple of early P-80's were deployed to Europe (Italy) during WWII but never saw combat.
F-14A vs. NVAF MiG's - F-14's flew CAP during Operation Frequent Wind when Saigon was being evacuated.
F7F & F8F vs. Japs - Both types arrived literally days late to see combat in the PTO during WWII.
Okay, another one that was highly unlikely but that DID occur: L-4 Grasshopper vs Fi 156 Storch. Can you say stick 'yer Colt .45 out the window and blast those Krauts!? LOL Yes, it did happen...
(No comments about derogatory terminology, please. I'm half Kraut myself, just as I'm half Pollack. And remember, you don't have to be Polish to be a "pollack"...)
Fade to Black...