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Turbo is more power with no parasitic loss, but you have the heat issue. Turbo uses the exhaust gasses which build heat rapidly, so an intercooler is needed to help cooling. The supercharger doesn't have heat issues like turbo(because it uses the intake not exhaust) so is generally more reliable for the long haul, but it will use the engine pulley system, and saps power(parasitic loss), before spooling up.

My take: Turbo=bigger power, but less reliability.
Supercharger=more reliability, but less power.
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