That's a toss up between Randy Orton and Umaga. Umaga never impressed me when he wrestled as Jamal as one half of three minute warning and he impresses me even less now when he's beating up on Johnny Comelately from Hoboken, NJ. Fight someone real or go to Smack Down! As for Randy Orton there are many reasons he's the worst:
1. He ripped his gimmick straight from The Rock. Don't agree? Watch him sometime and you'll see him do the people's eyebrow.
2. He can't wrestle/carry a good match. I know the argument will be made that he is the youngest heavyweight champion ever. Right. After Brock Lesnar dumped Vince he had to find some way of erasing Lesnar from the record books.
3. The Legend Killer moniker. Okay, this is the one that burns me the most. He rko's Harley Race, Moolah, Mae Young, Eric Bischoff, Sgt. Slaughter, Ric Flair. Great. Now consider that they are all past their prime and not in ring shape. Harley Race would have taken young Randall to school in the old days. As would the others on that list. I know, I know, what about the Undertaker. Yeah he beat him at SummerSlam but who hasn't beaten the Undertaker at SummerSlam. The Undertaker's legend is at Wrestlemania. Randy couldn't get the job done at Wrestlemania so the legend lives. I will give him Shawn Michaels though.
4. Get a new ending move. Call it the rko all you want at the end of the day it is still the Diamond Cutter.
5. Injuries. This kid gets hurt more than Mark Henry.
6. Lack of in ring knowledge. There are more moves than the Forearm smash, headlock, and finisher. Pick up a drop kick, armbar, something.
7. Lack of charisma. Randy picks up the mic and he is B-O-R-I-N-G BORING!!!!!!!!!!!! "I'm the Legend Killer. Tonight I kill the legend of Eugene!" Yeah, real impressive.
8. Lack of professionalism. Anyone who watched Wrestlemania 22 knew who was getting beaten in his match. Randy basically came out and pouted all the way down to the ring. Then he didn't even have the courtesy to try and put on a good match before being pinned. Next time if he's going to act like a baby because he isn't going to win then just drop him from the match and let Kurt Angle and Rey Mysterio go out and do there thing. Want to argue? Randy Orton was handed a thirty day suspension for unprofessionalism the day after Wrestlemania.
Well that's the only argument I've got so I guess my choice is simple: Randy Orton is the worst wrestler in the WWE.