10. Randy Orton
Rev Theory's "Voices" definitely suits the character of Randy Orton down to a T (albeit a little less so recently), but having had the theme for almost a decade now, it's safe to say that it feels more than a little played-out.
It doesn't help that Orton isn't exactly at a peak period in his career right now, but for all of the fan accusations that he's "bland", an energising new theme could at least perk the crowd up when he comes to the ring.
For this point in his career, Voices just feels a little too lethargic, and while a blistering rock anthem is probably even more inappropriate for his character, something new might make fans pay better attention.