Hopefully you have a good program that educates you about the different options. You should along with your surgeon be able to make a choice that best suits your medical needs.
I had a class that I had to attend to start things off that gave me two options, sleeve or gastric bypass. The surgeon spoke to the class with illustrations on a projector and took questions about both procedures.
I then went home and started a 6 month diet that was laid out in detail by a nutritionist. During the 6 months before my face to face with the surgeon, I had lots of time to think about the pros and cons of both surgeries.
During the 6 month diet, I would become dead set on the sleeve then read or hear something that changed my mind and I would start feeling like the bypass was the best choice. It kept going like that for about 2 or 3 months until I watched so many YouTube videos and read so many articles and forums that I decided on the bypass.
Whatever you do, make sure you go into this educated and you are not pushed into making a decision based only on what one doctor says. I don't know if it will happen but I would like to go the rest of my life without another major surgery. I was determined to get this right the first time. Take it slow, do your homework and make sure you are putting your trust in a reputable center of excellence.