I miss the time when everything was not an aoe fest tbh. I know its just trash and trash is boring etc... but knowing which mob to stun/disarm/reflect and doing alot of marks for cc etc was fun when you finaly figured it out. It became something you could somewhat improve on each run in instances and to some degree take pride in. Now there is no difference in doing an instance for the first or hundered time. its just mark skull and aoe the rest. Works for every pull in every current instance/heroic/raid.
On the flip side boss fights seems more interactive and fun in wotlk.