well, Ive nevver played Wow, but the Pros and Cons of Runescape are...

Pros: ITS FREE!!!!!!!!!!!!!!!!!!!!!!, Its fun for the first hour or two, Its... sort of good after the first hour or two.

Cons: When you are bored of it, You will never play it again(although I still average about 15 minutes a month)... and you get bored quick.

I also have a con for Wow: People will make fun of you