I think the reason many haven't posted is due to your OP being very jumbled up and sort of dull. Maybe try adding some pizzazz to the OP with pictures, colored titled font, spacing appropriately. If it's appealing to the eye, much more people will take the time to read it. Just look at RMTs for example. No one likes to rate really boring RMTs with no pictures and or very small descriptions or lack of proper layout. The better it looks, the more feedback you'll get.
Anyways, this thread has a lot of potential for discussion! One thing I must say is some of your wall breaking sets that you posted here are greatly outclassed by other sets. For example, LO Hydreigon is decent, however is lacks the pure power of a Specs Latios or a Choice Banded Kyurem-B, which I honestly can't believe isn't included in the OP. Also, Choice Banded Terrakion should most defintely be included in the OP, because nothing can really take a Close Combat well at all, not even Skarmory.
Wall breaking is all about extreme power that hits the wall's weak defensive stat, so although a Salac Dance Terrakion has the potential in being a wall breaker, CB Terrakion can wall break right off the bat, and doesn't have to set up.
Other amazing wall breakers are CB Garchomp, Bulk Up/Orb Conkeldurr, and Technician Breloom. But seriously, you MUST include Choice Banded Kyurem-B in this OP, because he himself can 2HKO even Steel types, and is probably the most powerful Choice Banded user in the game.