The me262 was better than the meteor, luckily they were not produced early enough to make a difference
The Us Sabre f86 and the Mig15 ( and therefore 17 and 19) were based on it's basic design, with only swept back wings and better engines the evolution
If the Nazis hadn't been a particulary nasty and petty bunch, they would have had these things. Instead they got rid of top scientists and wasted money on terror weapons, V2 and stupid bombers
So I don't think the me262 became great