Transfer to horde ?

I have been playing on icecrown for a couple of years now on Alliance. Was thinking of transferring a couple of my toons to horde. instead of leveling a new toon. Just wanted to know if Horde side is as active as Alliance on raiding ?
as i dont see many recruitment posts for Horde here. Might be different in game. Is there anyone who plays on Horde .. Or plays both sides and let me know if its as active as i find it on Alliance ? or would you suggest to just stay where i am.
I dont PvP as i suck at it, so there's no point in mentioning it in any comments :)

Thanks in advance.,

Horde is actually your better choice for PVE because Alliance has too many *intellectually challenged* people in it.

More people raid on horde than ally so yeah don't worry about it. I play both sides. Both sides are plenty active enough though.

This is the case because horde racials are better for pve (although shadowmeld on Sindra is pretty op imo)