Well i can name a lot of Superstars right now but i'm going to just go with Three

Randy Orton: Probably the Greatest Heel of his generation. Orton may have one of the most easiest Finishers to pull off but its deadly and it sells it amazingly. Orton is probably in the top 10 in the best heels ever to step foot into a Wrestling Ring. Also, he has one of the best streaks and that is KILLING LEGENDS and thats mighty impressive. Also, Randy Orton has almost ended the careers of Shawn Michaels and Rob Van Dam.

Big Show: He is the only one in the WWE to hold the WWE Championship, WCW Championship and ECW Championship. He is 7ft tall and probably one the most agile big guys i've seen in the WWE. He may use the Chokeslam as many others do like Kane and Taker but he sells it amazingly. Also, Big Show has many tag team titles as well as other single titles. And i think Big Show is greatly underrated.

Triple H: I am a slight fan of Triple H's, but me like others think that he has won most of his world titles because he's the Chairman's son in law. HHH has had an impressive career and has been in two of the most dominant stables DX and Evolution but i don't think he really sells well as a face. He only really shines in my point of view as a heel. HHH as been in great matches over his career like Taker vs. HHH, HBK vs. HHH, and etc. But i think HHH is overrated as a face and underrated as a heel(at times).