Long term relationship for sure. I am tired of hooking up and of 3 month long relationships. I'm already over that stage.
If you're younger (let's say 18-21) I'd say you should burn the hooking up phase while you can (stay safe though). Don't get into a long term relationship when you're not mature enough, besides you might regret it later and the younger you are the more success you'll have at hooking up (with good looking guys at least).
But no one my age seems to want anything but hookups. I guess I'll probably find a partner in my 30s like lots of gays do 
