I think the thread title can be interpreted differently. There's the guy that you can't miss due to the fact that he will be on more or less every show, and will have such a focal point of the show that you simply cannot help but notice him. And then there's the guy that you simply cannot
let yourself miss because you enjoy him so much.
I'm gonna divide it into Smackdown and RAW.
Someone you can't help but notice
Smackdown: Obviously as of late it has to be Kane. He has had such a big role on Smackdown in the past years time or so. At least ever since the whole Undertaker vegetative state storyline started. And I must admit it's been quite a treat to watch the guy, because he has definitely regained a lot of lost momentum, and has become a man to be reckoned with once again.
Raw: John Cena. Who else? This is the face of WWE, of course he will be featured as much as possible, and he will be the one that we most likely all remember after an episode of RAW. He gets the premiere storylines, as well as he gets a lot of air time, and much warranted as well. John Cena has been on a ROLL this past year, and he has definitely gone on to become a major part of RAW, and WWE programming in general.
The wrestler you don't want to miss
Smackdown: It has to be Dolph Ziggler. I've enjoyed Dolph for a long, long time. Ever since he began challenging for the Intercontinental championship against Rey Mysterio in 2009, Dolph has been on my radar, and have been one of the wrestlers I've found most joy in watching when he wrestles. He has been able to tear it down with more or less anybody that has been put in front of him. And finally he has gotten a championship reign worth mentioning. He has been booked as a strong, yet heelish person that can retain in any thinkable way, be it by dominating, or by slithering away in the last second like he did at TLC.
Dolph has definitely proved to me, and I'm sure to many others, that he can make it in WWE. And he could EASILY go on to become a main event talent. At least one can hope.
RAW: My first thought would've been Wade Barrett. However, I can't really say I want to put him on this spot, because he's already being consistently featured and he's already getting more than enough air time to the point where he's almost contesting John Cena in terms of being the guy you can't help but notice.
So that's why I'm gonna go with another person. This is one of the few talents in WWE, perhaps in the business that can truly claim to be (Sorry Laycool) flawless. And it's not just because I'm a fan of him, but simply because he's just better than the rest. Yes, I think it's pretty obvious now - CM Punk. This guy is new on RAW, and he has yet to unleash his heelish side on RAW, which has been on a roll on Smackdown, even if it wasn't treated as "well" as some would like to see it. However, he's getting thrown into what seems to become a feud with John Cena. And that is bound to be interesting. He's great on the microphone, he's hilarious on commentary, he's great in the ring and he has every single tool available to offer some great, great things to RAW.