Personally I prefer Kieran Lee's million dollar cock...but he's a friend of mine so perhaps I'm slightly biased...
Anyways, of course size matters, there's nothing more disappointing than a needle dick or one that resembles a mushroom without a stem, and if you're in that category, you guys should just save your money and stop kidding yourselves, you aren't pleasing anyone with that thing, and if she tells you otherwise, she's lying.