Hell yeah! They are all deserving of A-Rank, Mamoswine and Zam in particular. With the right support, Volcarona is an easy A-Rank as well. Kyurem is also DEFINITELY A-Rank, just like his counterpart. His typing lets him wall Rain teams nicely, and his coverage is near unmatched as a Dragon type. Although that 10 extra BP may not seem like much, it really means a lot. Kyurem could be described as the Special attacking counterpart to Mamoswine, as they both have the same BP in opposite forms of attacking, and both can tear apart the meta if played right. His SubRoost set is soooo good and forces a ton of switches, and I've also found his Life Orb All Out Attacking set is actually extremely effective. With a simple moveset of Draco / Earth Power / Focus Blast / Roost, Kyurem is near impossible to wall without a dedicated special wall like Rotom-W or Blissey. After testing him quite a bit, I've found a special place in my heart for good old Kyurem, and like PK said he's very underrated and looked over because of Kyurem-B. Such a shame, it tears Stall and everything else to pieces without having to rely on Outrage for everything.