It completely depends on what you are looking for, they both have their pros and cons, but I think if you took a vote, the Turbo would win in a landslide. Turbos are much more efficient than superchargers because they utilize exhaust gases, whereas Superchargers are turned by the crankshaft, essentially robbing power to make power, I think it's called "parasitic drag??" I call it robbing Peter to pay Paul, but whatever.
From what I hear, a supercharger is much more reliable on a day to day basis and a much easier install, but as far as efficiency goes you just cant beat a turbo.
Do a search on here, there have been plenty of threads on this debate with some really good links to actual numbers and dynos and tech stuff.
I belive there is a thread on here somewhere of an official turbo vs super thread that I actually started b4 I got banned. But im to lazy to search cause I already have a turbo and superchargers suck.
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