In classic, as well as BfA, I will be driving with the healer.

I will use a paladin tank because they are easier you don't have to micro manage as much, second choice would be druid tank. Allows me more time to focus on healing.

But that's a gamble as well, if healing isn't as important as I think it will be then it wont be a very effective setup. I've never played max level in classic, I started the game two months before BC came out and I never played anything max level until BC.