I guess you are totally against a chevy? The ability to get power from an LS motor is shown in how many buggies and vehicles get LS Swaps. When was the last time you saw an Eco-Boost aftermarket swap?
I think the aftermarket use of LS motors is mostly due to their physicl size. Ford 5.0s are pretty large due to the overhead cams.
On the 8th day god created the Super Swamper TSL and said "go forth and kick ass"