I went with the bypass because I had GERD, and I didn't want it to get worse with the sleeve. A bonus was that the GERD actually went away after my bypass. It's strange not to carry TUMS in my purse anymore!
If you have GERD, definitely get the bypass. If not, then it just comes down to your personal choice. Watch the youtube videos, do your research, and see if your surgeon leans one way or the other. Good luck!!