In my opinion, it's a matter of time before the LS engine becomes the dominant choice. As old dinosaurs like me die off and the younger folks who understand all the electronics involved replace us, the LS will supplant the old small block. It's lighter, stronger, and capable of more power. Hot Rod Magazine did a series of builds on some LS engines a while back and the results were astounding. The last one I read, if I remember correctly, they took the LS out of a junkyard pickup truck that had over 100,000 miles on it. They tore it down, re-gapped the rings and put it back together. They changed the camshaft and added twin turbochargers. The first run on the dyno, with mild settings of ignition and cam timing and moderate boost from the turbos, was over 600 hp. They said at those settings that engine would have lived another 80 to 100K miles, but... The object of the project was to see how far they could push it. They kept boosting all the parameters and settings - finally, at something over 1400 hp, it scattered its guts all over the dyno room! A stock bottom end that can stand that kind of punishment is hard to argue with...