how many of you have honestly ridden both? the two ski entirely differently. if you're skiing just park, and like rails and buttery stuff, get the invaders for sure. they're nice and flexy, centermounted, and actually ski decently all mountain as well. the liberty's are super stiff underfoot, with a litte flex near the tip and tail, similar to how line's old pro models used to be, but stiffer. i rode invaders all season last year, and for how much abuse they took on rails, i didnt lose any edges, and only have 2 cracks. i've seen liberty's ridden for not even half the season with no edges underfoot at all. provided line fixed the delam issue, which i have been told by line that they did, then the invaders are definately the better choice, unless you like a really stiff ski for park.