When it comes to the top prize at WrestleMania I'm of the believe that it should be defended in a traditional style bout. They can be a bit loose with the rules but for the most part I want a classic feel. Plus HitC is so played out that I wish it would go away for a few years.
Yea I have to agree. It used to be when we heard of a HIAC match, we were like "OMG can't wait, can't wait", now it's like "Been there, done that". Gimmick matches are fine when they are used sparingly. Not saying they use HIAC all the time, but it's been used enough times to go, meh.
Plus I'm in the camp that if you have two good wrestlers in the ring who can play of each other well, then gimmicks only serve to take away from the match. Both HHH and Reigns are big guys, HHH is a superb in ring general and will carry the match, in short he will make Reigns look good.
Lesnar and Ambrose on the other hand need the gimmick. Not to make them look better, just to even up the odds for Ambrose. Who quite frankly would get killed if he didn't have access to a chair or something. So in some cases it works in others it doesn't.
In saying that though, don't know why Vince made this match a HIAC for Taker/Shane, probably just so he could say it and make it sound impressive. Putting two people with a combined age of 97 in a cage either will be spectacular or fucking horrible.