@SMXLR8: Oh yeah I forgot that Aang is OK on the forum, sorry.
Why are we talking about calcs?
Amen to that~
The last 3 he has no chance. Batman with prep can take down Superman or worse. Ironman is simply stronger all around and Storm has better weather manipulation than Aang. With Torch it's a bit overkill. Aang has a shot at rounds 1 & 2. Round 3 I'd say no. Those 2 are not that powerful but take down monstrously powerful characters through skill and maybe some prep. Round 4 he would probably lose as well. Iron Fist has some impressive feats under his belt.
Unless Aang could Blood bend he would have a chance.
Also there is no anime and manga characters here only comic books.