1) Wc3, as mentioned, sold a TON of copies.
2) A good chunk of those copies that got solid after Wc3 Had been out for awhile were BECAUSE of DotA. IceFrog literally made blizzard a LOT of money by creating dota, because as a result a bunch of new people bought Wc3 and TFT.
3) Even with that said, LoL might have a larger following? It is difficult to compare, we never had any numbers for how many DotA games got created and played a day, things like that.
And unless Blizzard DotA is anything more than a DotA Clone (which HoN and DotA2 both are) it doesn't stand a chance of doing too much to LoL's fanbase.
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~C~ Eff_Dee
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