I'm not a glass snob (I've confirmed this for myself, and you'll believe it here in a moment...) - for me, the difference in IQ between the Vortex and the March isn't worth getting excited about. If you're dialing on the clock and enjoy counting clicks, the March is definitely a better choice. I say this having mounted and shot both scopes on the same rifle.
The LHT is on my Tac Ops Delta-51 at the moment because the March is... in Japan, I think, but I guess I need to check. Behind the scope(s), I prefer the Minox ZP5 to either (which is on my KM OPS-51), even if only marginally. Of course, it's also bigger, heavier, and doesn't have locking/capped turrets... so not really in the same class.