The latent homophobia in this thread is beautiful.
Straight guys can be attractive because they're unobtainable and gay guys are mess' who always want what they can't have. I don't really get the appeal of wanting someone that will never love you in a romantic sense or will never have sex with you unless you purposefully impair their judgment with booze/drugs and take advantage of them.
Gay guys can be masculine but also have that really sweet cuteness about them too which is much harder to find in straight men.
straight guys' masculinity turns me on lol
It's actually a huge turn off if I find out they like sports. 
And most other straight stereotypes really. Course, I guess this would lead to the question of why I don't just date a girl. And that's cause they don't do it for me. "Twinks" still look like guys after all.