Persoanlly when I'm too tired to play I prefer to go offline and get one of my old favourite RPGs out. I actually love a game called Exile 3 from my childhood, really great RPG if you don't mind a really clunky game with alot of great text dialogue :P. It's like 3MB to download or something :P.
I actually just restarted playing Morrowwind the greatest RPG of all time :P. Of course what I like in an RPG is great atmosphere and lots and lots of text dialogue so its just like reading a book but with special effects.
Online games: definitely just play something in the COD series or some other FPS very little thought needed :P.
P.S. If none of these suggestions are something you like you should really just go give your life up and play wow :P
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