well, Dr. Manhattan is near omnipotent... so it is not fair to compare him... plus the blue penis is a fail.
After seeing the Avengers I would have to say the Hulk or Thor. I used to say superman, but the whole cryptonite thing is a serious defect. Hulk can't fly, but is industructable..... Thor is pretty much a God, he can fly and call down a rediculous amount of lightning his weakness seems pretty much to be he makes questionable decisions and is brash. Thor also was able to withstand a full barrage by the Hulk and seemed fine.
Gotta say Thor.
End of 2009 Predictions (Set, January 1st 2009)
Wii- 72 million 3rd Year Peak, better slate of releases
360- 37 million Should trend down slightly after 3rd year peak
PS3- 29 million Sales should pick up next year, 3rd year peak and price cut