there are a lot of differences, and honestly, i hope your not planning to boost in the very near future, because if you have to ask us you obviously dont know enough to begin working on it unless you wanna spend Boatloads of money for someone else to set everything up for you and walk you through it..
i hope youre just asking so you can get ideas to look into it and do the research.
but anyway, id go the supercharger route.
superchargers get their gain mostly in the lower RPMs and turbos in the high rpms,
turbos have lag and superchargers dont.
those are just two main differences, but they are the ones that really pursuaded me to prefer superchargers.
im pretty sure turbos have more potential on the tib, but im not an expert.
if you really wanna find out a lot, if i were you id go read up everything you can in the Forced induction section and go buy a book or two on the matter..