I fly the La5 predominantly, and while the fuel burn can be a pain in the ass, I really like it.
I can stay up just as long as I could in AH1, I just have to use the proper fuel settings.
...and when I know that its too far, I'll take the p47d25. But I always take too much fuel, 'cause I die in the first few minutes after reaching the target. I blame Nopoop really. He just made them so damn pretty.