I do know. It is much easier and safer to make power on an engine made for forced induction than on one that wasn't, especially if one (the 4G63) has been around longer for more experimentation by tuners.
This isn't an opinion issue. It is a fact that you can make much more power safely on a 4G engine than you can on an F20C with the same amount of money.
It is an opinion issue on what someone believes which car is better. I consider the S2000 a great car, but I KNOW that you can make more power with an Evo.