I started out thinking I wanted the sleeve, but switched to a band after my surgeon consultation. Sleeve has a lower complication rate, but the complications that occur are more likely to be serious (as in, ICU and PICC lines) than lap band complications.
Basically, both procedures are safe, but my temperament could more easily accept a greater risk of a less catastrophic complication than a smaller risk of something really awful happening. This is more a matter of feelings and temperament than a rational computation.
But on the more rational side, I figured that it makes most sense to get the least invasive/lowest risk procedure that will still get the job done. Taking into account my starting weight and food behaviors, this was the lap band for me.
Other people have reached a different conclusion and had a wonderful experience with the sleeve.
One thing to consider about the lap band: it requires a lot of follow-up over a long stretch of time. If your surgeon does not offer good follow-up, or you would not financially able to afford the follow-up should your insurance change or if you are self-pay, then it may not be the best choice.