easily the most power is low comp + boost.
really u can just boost the stock motor and do 250+ whp on a safe tune
which imo would be the cheapest and great performance.
if u have the money to build low comp + boost obviously do it. ull get far greater performance and a more reliable motor (if built and tuned correctly)

just remember u get what u pay for and its better to do it right the first time
(from my experience alone i could have done a fully built ls/vtec boosted with the amount of money i spent building/rebuilding because of going cheap the first time with someone who swore they could build a motor)