Sorry, I had to post this. But me and friend had an arguement about which is better. So what do you think is better.

I think  BMX, cause BMX is the shit and 2 wheels are better then 4

Agreed.

come on it has to be bmx duhh i hate sctebording

I agree again.

bmx

It's quite clearly skateboard...
BMX is too repetative.. And with a skateboard.. if you bail.. theres like.. one plank of wood and a tiny bit of metal that might hit you (not really gonna hurt)
Where as BMX theres just a clump of metal coming to hit yah.. (gonna hurt a lot more)
Some kid i know was in a coma for 7 hours with fractured skull and smashed in face and ribs.. Because he tried to 360 tailwhip over the transfer.. front wheel hot the copin on the way back down and he face planted with his bike landin on his head...
So by my rekkoning.. Skateboardings better and because i'm the only one that gave any sort of valid reason.. i win ^_^

Agressive Inline skating, you only have your own feet and sense of balance. + there is nothing to hit you.

true but i think thats a bit repetetive too :S
it is the next best thing but i still preferre skateboarding..

BMX

I will prefer skateboard