Moondragon is one of the most powerful telepaths in the Marvel Universe. She is often portrayed as always willing to use he powers to their fullest, even enslaving an entire alien planet as well as Thor and the Avengers at the same time! She may even be more powerful than Professor Xavier. Joined in issue #151
Considering he started his career as a criminal, Hawkeye has been one of the most stalwart members of the Avengers, even leading the West coast branch of Avengers. Joined in issue #16 model: Randy Orton
When he made it into the Avengers I thought "not bad for a second-rate Dr. Strange. Eventually he proved to be a third rate Dr. Strange. And when Marvel tried to give him the "Hellstorm" treatment he only got worse so they killed him off. Joined in issue #278