There are many things about Classic that I love (you mentioned some) but I just get too frustrated, I will stick with retail.

I am currently playing Classic solo and was going to level a team after I had a main at 60. Starting to regret that though, I should have boxed from the start, not sure I want to go through leveling again. We do need to level a team to 60 though, There is a slight chance we will get a free 110 boost for BfA for reaching 60 in Classic. (Brazil Blizzard did)