Explain your definition of simple. Explain your definition of hardcore, admittedly a pliable concept. Do we disparage games that are easy for people to start playing? Do you really think a gentle learning curve is somehow WORSE than a steep one, if the two both ramp up to similar levels of complexity in the end?
As a former DPSer, I can point you to spreadsheets for weighing the pros and cons of your equipment and attack patterns for different types of fights in WoW. Here's one: http://rogue.raidcal.com/RogueDPS_2_4_2_2.xls
Is Starcraft simplistic? Is chess simplistic?