#5 The Miz vs. Daniel Bryan
The Miz vs. Daniel Bryan is precisely the kind of match a big event such as Summerslam is meant for. A match between these two seemed impossible some time ago, but with Bryan cleared for in-ring action and performing at his best, a match between these two is bound to take place at some point.
It's almost as if the WWE is stalling till Summerslam for a match between these two, by putting Bryan in a second-rate feud against Big Cass and having The Miz be made a fool of by The New Day. In the two months between now and Summerslam, Bryan can be built back up again and The Miz can let loose on the mic, absolutely obliterating Bryan in the process.
Add Bryan's fantastic in-ring work - The Miz has been stellar too - and you have a great match on your hands.