Worlds most deadliest war plane?

Currently what could be the worlds most deadliest striker craft.. is it the US's F22 fighter?

What do you mean by striker craft? There are fighters, bombers, and attack aircraft.

For the fighters, it's the F-22
For Bombers, I'm guessing the B-2
For attack it's the A-10

And you would have to define deadliest. That's kind of vague. With the types of guided bombs these days just about any plane that can carry a JDAM could be considered equally as deadly because of the precision delivery of the weapon.