Here's some basic questions:

how much power?
Street driven? how much?
how many days at the track?
race or pump gas? alchohol?
$$$ to spend?
fabrication skills?

Like said, turbo installations require a ton of fab work, but ultimately are a more efficient design.

Supercharger setups are almost turn key, kits are everywhere for SBM.

The rest of my answers are based on the questions above....