Here's my thoughts about the mania.
For the first match my predictions were that either Barrett gets his title back, or Ambrose wins. I guess I was wrong. The match wasn't bad, but there have been a lot better ladder matches in the past.
Rollins vs Orton was a predictable match, however it was a close one. Rollins didn't lose any ''points'' considering he cashed in the briefcase.
Sting vs HHH was a pretty good match. The return of DX ( and HBK especially) and nWo was quite the surprise for me. I predicted a win for HHH, I feel like it would've been bad if he didn't.
The divas match.. I'm glad AJ and Paige won. The 2 sisters have as much skill in the ring as Cena. They've been pushed way too much, mainly because without AJ there wasn't anyone else to fill the "top" spot.
Rusev vs Cena. I was having doubts about this match. On one hand I thought Rusev will lose so he can continue to pursue a bigger title. On the other hand I thought he would win and keep his undefeated streak. It would also be his first WM win. He would have to lose the title on the next tourney. But then again I don't think it would've been good for Cena to get another match. I just hope they continue pushing Rusev... and maybe he'll get a title shot against Rollins, or maybe Lesnar? Now that Lesnar's contract has been renewed, there's a possibility that he'll get back his title( he has the right for rematch, if i'm not mistaken), but we'll see.
Wyatt vs Undertaker. What's there to tell about this match really? Who is Wyatt? What has he accomplished? He hasn't done much in the last few months, his matches/promos ratio is like 20/80. He doesn't impress me that much in the ring. It was an obvious win for the dead man. They couldn't let him lose a 2nd time, after the embrassment from last year. Which for those who don't know, Taker was supposed to win the match.
Lesnar vs Reigns. Like I said above, Lesnar had his contract renwed, meaning it was a sure win for him. But when Reigns started doing his Superman punches and spears and what not, I thought.. what if he wins

. Considering he's the current John Cena who tends to win with 4 moves after lying for 80% of the match. But on the other hand I was expecting Rollins to come with the briefcase, I thought it would be when the match is over though not before that.
Overall not a bad mania, but not the best either.