While Crossfit develops your whole body like Calisthenics. It's not as effective and you don't grow big fast but it touches every part of your body. So Crossfitters are not big but they have really outstanding physics.As for myself - I would like to try one day. It seems interesting and not boring because the excersises change often as far as I spotted people doing it at the gym. But for now I would like to get buff even with some +bodyfat% and also I like huge guys not really with ABS but with spectacular arms chests and you know, overall strength.
I'm sorry I just hate vegans. Of course calisthenics is also great and works nice on your mobility. If I wasn't so lazy and had cash I would do it too.
I hate vegans, too! Unless they're deep fried.