New to the group, WLS

Hi All!
So glad to be able to find you here.  I am hoping to be cleared to have surgery in December. Should find out this month.  I want the sleeve but my surgeon wants Bypass due to my hiatal hernia.  How did you all decide?  I am seriously freaked out about dumping syndrome, hence wanting the sleeve.  Any advice would be welcome!
Blessings,
Amanda