As far as The Miz goes, I put him on that list because when he had the belt, he elevated himself as far as I was concerned. I actually tuned in to see what shenanigans he was going to get involved in. It was constantly funny, and kept me tuning in. Lately, they haven't given him **** to work with, and he hasn't really done much with what he's been given, so I'm tuning in for him less and less. We'll see what happens at Wrestlemania, if he's actually got something good in store.
You know, I disagree with a lot of your points, but I won't join in on the Miz-bashing others have engaged in, as I agree with you that The Miz HAS elevated himself. He is an immensely improved performer. When you look at how terrible he was at first, then through hard work and dedication, he made himself passable in the ring, then with even more hard work and dedication, he made himself good. I don't think The Miz had innate wrestling ability, this didn't come naturally to him, so I have a lot of respect for his passion, in the face of naysayers, for elevating himself the way he did.
But though he's good in the ring, he's not the best. Though he's good on the mic, he's not the best. So my point is, why is it that you see him as a star over superior contemporaries. Why, in turn, do you suddenly find him less compelling now? Which brings me back to my point: you thought The Miz was a star, because he was presented as a star. He had an extended run, on Raw - the show you watch - where he was WWE Heavyweight Champion for a long time, got a lot of mic time and a lot of interaction with top stars like Cena. He was presented as a top guy, and you bought into that.
But WWE's problem from time to time is that they don't have long-term commitment to such pushes. Someone is a top guy for a while, then once Cena beats them, there's nowhere else for them to go but down the card, and they flounder while someone else gets pushed up and is top guy for a while. There's not enough depth on the top of the card to keep people on top. And that's the problem with the lack of stars comes from.
Is someone like Daniel Bryan going to be The Guy, the top babyface who moves merchandise and sells out arenas with his name on the marquee like Cena? Sadly, I doubt it, even though he's probably my favourite wrestler. But he could very easily be The Other Guy, a dependable top-tier heel who can be set against your top babyfaces who move the merchandise and sell out the arenas. That's the kind of role that made Jericho, Edge, Kurt Angle, even HHH into stars. But the key is continued commitment. It's not an interchangable role. If you depush Bryan after he drops the title, he only gave the rub to Sheamus or whoever. If you keep him in top-level programs, and keep him credible for a second title reign in the future, that's an investment, and he becomes a guy who you can continue to use to elevate others in future, while he in turn is elevated through a consistent commitment.