I have read articles saying the sleeve has more restriction then the RNY . I am 23 months out and still have great restriction. Before the surgery my portion size was huge and I loved cake, ice cream and candy lol. Now I keep all that stuff out of my house and when I want something I go out and get a one serving.
Either surgery will work and you get out of it what you put into it. You have to remember its a tool. Good luck to you !