for gaming, the one thing that matters is the stability of the line, latency and the response to the server /those things create lags, and lags can turn even the most peaceful gamer into a murdering rage machine
/. also, I'm pretty much sure, wow can be played even on a dialup /well, not really, as it would kick you out of any highly populated area, but you get my point/
as for the speeds /if the price is equal, go for the higher numbers/, personally I'd go for 2/1 /because torrents are good and sharing is caring/