It’s years since I played WOW. I was quite competitive back in the day but the constant dumbing down with every new expansion put me off.
I have recently read that Blizzard are going to start up new vanilla WOW servers which may be worth a look. At least I’ll be able to reminisce about the old days!

http://www.pcgamer.com/this-is-how-blizzard-plans-to-finally-bring-back-vanilla-wow-servers/