Regarding the themes, there are a few things I've learned:
-The only songs I would go so far as to say I genuinely like are Drew McIntyre, Dolph Ziggler and Brock Lesnar.
-Songs I used to like but am sick of now: CM Punk (never noticed how bad the lyrics were before).
-Cody Rhodes would be awesome if it were his original "Smoke and Mirrors"--the new one is just awful.
-Wade Barrett's song, as much as I like him, is not getting any better (and I thought it was bad to begin with).
-Justin Gabriel's already sounds like it belongs in a video game soundtrack.
-Daniel Bryan's doesn't really do anything from me, I guess it's a nice change of pace from the rock tracks.
-David Otunga's theme is both better than I remember and yet still pretty mediocre.
-The Revolution song was only bearable at first, but it's just grating at this point.
-There is not one SINGLE positive thing I can say about Zack Ryder's theme.
-As much as I hate Swagger and think his theme does not suit him at all, the song isn't actually that bad. One of the more tolerable ones.
-Evolution and HHH are bad-ass, I wouldn't say I could listen to them all day, but definitely up there.
-Christian's song is really meh to me, it just has nothing special to it. And I rather preferred the female version
-Lita's used to be tolerable to me, but when you listen to it in a non-live context, all I hear is screaming and whining.
-Jericho's was always "good" to me, not a favorite, but good.
-Edge I would say is just above Jericho. It starts of strong, but just drags on.
...I think that's everyone