I could use the argument of "It's not about the powers, it's about their character/personality"... But we haven't gotten to see enough of Hawkeye yet for his snarky personality to shine.
Looogaan! We've missed you! Weapon X hasn't been the same without 'cha! Nobody calls me bub anymore!~ Deadpool
Avengers, Defenders, Thunderbolts... I make any team better!~ Hawkeye