Contrary to my steam play time I have well over 1,000hrs invested in EQ2 with my 3 endgame characters. This was by far the most fun I've ever had in a generic style MMORPG.
I did play WoW for a while but the graphical style of WoW and the over simplified skill system kinda bored me to death.
Everquest utilizes an in depth skill system that requires you think before using points in a particular tree. Granted classes are not really open like in some of the new MMOS but the class itself has a lot of customization.
Example: A wizard has class restrictions forbidding the use of heavy armor and a variety of weapons. But it allows a rounded out skill selection including element proficiency and damage/debuff modifiers.
All in all I strongly recommend this game for any and all MMO players. F2Players are not restricted like in many other F2Play games. Level cap is 85 and the auctionhouse requires F2Play auction tickets to use otherwise buying the All access pass makes most everything free besides Expansion stuff.