#1 Zack Ryder
Zack Ryder has been with the WWE since 2005 and has won a WWE Intercontinental Championship, WWE Tag Team Championship (with the aforementioned Hawkins), United States Championship and Internet Championship all on one occasion.
Zack has been patient with his high levels of obscurity for a long time now and we haven't seen him perform regularly inside the ring either. Recently moved over to the Raw brand, we're yet to see him in any storyline - he's more active on Twitter than in the ring, which says all you need to know really.
With that in mind, it's about time that changes are made. Either he should do a heel turn or feud with former friend Curt Hawkins as a babyface, which would be something different and not necessarily predictable either.