I don't think it's quite fair that two knives at far different price points are being compared unless you factor in the price difference. It's almost 2:1. s30v vs. 154cm, g-10 vs. plastic (which everyone and their brother comments on) and Axis lock vs. liner lock.
So it becomes preference. s30v vs. 154cm both companies do good heat treatments on the steels, and if you aren't going to use the knife every day to the point where it needs to be sharpened every night, you won't notice the difference.
G-10 vs. fiber reinforced nylon or whatever they're calling it these days, it's dang near indestructible, so that's preference.
Locking mechanism... all preference, you think a liner is good enough, I'll agree with you, especially one from Spyderco. Axis... it's ambidextrous, I've never had one fail in 12 years, I've also never had an omega spring break.
I'd say, if you can, feel 'em both in hand, you really can't go wrong with quality and both knives deliver.