I feel the 190's just don't work real well for high alt intercepts (solo, that is). Low-mid alt, they're great. But at high alt they just don't have the speed that some other fighters do, which is nessecary if bombers are escorted; really, they top out at 21k or so. And the D9, with its fairly high wingloading, just feels a bit too heavy.
G-14 might be worth of that list (no worse than the P-51D).
But then the G-14, like some others, aren't really top of the class interceptors. IMO, whittle it down to a few of the top interceptors in the game.
IMO:
109K
Spitfire Mk XIV
Ta-152
P-47 M/N
Me-163
F4U-4
Spit 9 (maybe, I've never flown it at alt, and only have charts to go off of)