I was torn between the two surgeries as well and my surgeon wouldn't point me in either direction. He believes in giving the facts and having the patients decide. My son is having the sleeve in October. I chose the rny because of my gerd and my eating habits. If you have trouble with sweets, and fried foods at all, the rny is the way to go. I wanted the "fear" of dumping to always be there to help me mentally. I had the rny on 4-22 and havent had any symptoms of gerd since that day. It is absolutely wonderful. I am down over 60 lbs in 4 months and feeling great.
Try googling rny and the sleeve. I did this and found several side by side comparisons that lay it out for you. Hope this helps.