I'd think resistances to Steel, Fighting, and Fire, three big hazards for Ice-types, are probably among the perks.
And for those who use Moltres offensively (i.e Scarf and Specs), you're doin' it wrong!
Secondly, it's more than just a few UU and NU pokemon that can work well in OU. If you want a list, I can PM you.
I wanted to get some logs for Moltres now that j7r has said that I'm basing everything on theory. This was the first battle where I wanted to get some Moltres logs, not so long ago.
That was a whole log because Moltres pretty much owned throughout the entire thing. I don't care if Zapdos could have done the same thing, Moltres completely destroyed the foe. Toxic Stall is viable. I did get some hax, and we didn't play perfectly. But saying that there shouldn't have been hax and both of us should have played perfectly is the theorymon.
I am also wondering if people would ever consider using Moltres on a team without a Rapid Spinner. Now THAT would be convincing, if Moltres didnt actually require that support after all!