Metromix Denver has a photo article comparing Little Man Ice Cream with Liks.

Their verdict:

Man, this is a tough call. You're going to hate us, but the winner is...IT'S A DRAW! Both ice cream shops offered a unique ice cream experience and both shop's flavors, tastes and prices were absolutely perfect.

Weak sauce.

Personally I'll say little man on a day you want to eat outside, Liks if you want inside, and beyond that go by bike and choose whichever one is closest.