Should I date him? Promise 10 pts cause its really long sorry....?

So here we have my issue. I have 2 guys chasing me and another guy in the wings and I'm not sure I wanna date either of them. The first guy is Javier who is nice and kinda funny but he's also childish. The second guy is Greg who I have a decent amount in common with. He's funny, sweet, and he really seems to get me, so I really like hanging out with him, but I don't wanna start anything thats just gonna end (I'm moving away in a year and after my last experience I refuse to do long distance). The last guy is Casey, whom I know nothing about. He's my brother's best friend and my brother wants us to meet and hopefully click (seeing as how this is my older bro and he's big into protecting me I have to guess Casey is a really nice guy). Casey lives around the area I am moving to, but so far there is nothing there other than my brother's and mother's insistance that we meet... anyways.. I know that I don't wanna date Javier at all, but should I date Greg until I leave (or it ends)?.i would definitely break up with him when I leave and I'm not even sure I want to date him. I think that it's more that I want Javier to stop pursuing me (i have told him no, but he is persistent) and that I think dating someone will help. So what would you do? Would you date Greg until you left and risk your friendship? Would you wait and meet Casey and friendzone Greg?