Facebook is definitely better online. Imagine if you called your friends up just to tell them you like pickles, or you miss your girlfriend or that "The Arcade Fire r0kz0rZ!" They'd disown you, you'd have zero friend instead of 357. Facebook is like a security blanket for your annoying bullshit, it creates a bubble where it's perfectly acceptable to let 300 people know you just when to the bathroom and your pee smells like Corn Pops.
Sex Online, however, I'm sure that's better in real life . . . probably . . .