The fact is there are many different ways to develope HP, and a lot of it is feel and personal taste. So the question is where do you want your torque curve?
I have had 2 S/C's, 3 Cams, 3 Heads, and 2 different engines. There is a big difference as to where the torque curve was on each setup.
If you understand the difference between the different types of S/C's, and you understand where and when you can use N20 - then you should be able to choose.
I personally prefered the S/C configuration to the H/C + Nitrous solution I tried. Both had similar HP and traps, but the S/C felt more usable on everyday driving. Plus with an S/C you can always add N20 later if your bottom end can take it.
I will say you can develop a lot of HP with a Procharger if it's built correctly, and you never need to refill the bottle.
I'd let you drive in mine, but I switched to a 427+S/C+H/C a long time ago, so it wouldn't be a good comparison...