Remember in BC when pretty much any form of CC had a chance to be resisted? I loved that, it was so gamebreaking and unstable yet it made you adapt on the fly, was crazy fun.
I remember orc warriors having like a 30-35% chance to resist stuns due to racial and warrior talent bonuses and even that meta gem, whenever an orc warrior encountered a rogue in arena they'd just be bathing in their sweet sweet tears.
I'd be down for CC resist to come back to the game, I could imagine resisting a mages deepfreeze, oh wow just thinking about it makes me all tingly.