Stealth Showdown: America's F-22 Raptor vs. Russia's PAK-FA
Who would win?
Both planes carry deadly long-range radar-guided missiles of comparable effectiveness. Russia has its cutting-edge K-77M missiles with a reported range of two hundred kilometers and the United States has the AIM-120D Scorpion with a range of one hundred sixty. (The greater range of the K-77M may be an advantage, but not against a low-observable stealth fighter.) Superior ramjet-powered missiles, such as the Meteor and PL-15, are already being fielded, though it is not clear if either the F-22 or PAK FA will receive them.
The F-22 can carry six AIM-120s in its internal bays, whereas the PAK-FA is limited to four. This does give it a modest edge, as future aerial clashes are likely to involve a lot of missiles flying back and forth, and likely more than one will be launched to ensure a kill.
http://nationalinterest.org/print/blog/the-buzz/stealth-showdown-americas-f-22-raptor-vs-russias-pak-fa-20010