There are good arguers for libertarian-ism. Off hand I can think of Michael Huemer [an intuitionist but he agrees with Ann Rand on important points] and Bryan Caplan and Friedman. The ones that have good arguments against it are the very famous Edward Fesser. Dr Ross was once part for the movement but went away but today I think he classifies himself a "a kind of libertarian." Steven Dutch has some pointed critique on the movement. The more powerful thinkers here are the one that argue the libertarian doctrines are flawed.
