so i am gonna nominate glalie for b-/b. alright, coming from somebody who used glalie, i can safely say that this thing is hard as dicks to counter. your options are...mega aggron, scizor, pdef p2, and doublade. bulky waters dont work because they get freeze-dried. steels barring the ones i mentioned get beaten by earthquake. and the only 2 that dont take 50+ from explosion are doublade and aggron. and before you go apeshit on me and say skarm counters it, i'm using double-edge>return, like everyone using glalie should be. it also doesnt need more support than something like zard y, pretty much only requiring a good voltturn core and defog. to put into numbers this things strength:

252+ Atk Refrigerate Glalie Double-Edge vs. 252 HP / 252+ Def Skarmory: 151-178 (45.2 - 53.2%) -- guaranteed 2HKO after Stealth Rock

252+ Atk Refrigerate Glalie Double-Edge vs. 252 HP / 252+ Def Sableye: 163-193 (53.6 - 63.4%) -- guaranteed 2HKO after Stealth Rock

252+ Atk Refrigerate Glalie Double-Edge vs. 252 HP / 0 Def Camerupt: 264-312 (76.7 - 90.6%) -- 25% chance to OHKO after Stealth Rock

if you dont resist ice or are not fat as fuck like pdef p2, you dont take glalie. and look at the things in c, do you really think glalie is equal in viability to things like lanturn, normal zam, mega aggron, chandelure, or mega blastoise?