They're pretty different knives. The Endura is a longer, more slender knife, versus the ZT0350, which has a thicker, chunkier feel. I actually like the ergos on the ZT0350 a bit more. The wider and slightly thicker handles fill the hand a bit better, so if you're going to be doing a lot of cutting or putting more weight into cuts, there is a little less hand fatigue. They are both fairly large knives and take up about the same amount of space in pocket. That said, I think the Endura carries a little better, although it is still pretty noticeable in pocket.
Blade-wise, they are both the same thickness, although due to the difference in grinds, the ZT retains more steel as you get towards the tip. The high flat grind on the ZT still slices pretty well, and it also has a large belly and slight recurve. The lockup on the ZT feels more solid, although both knives lock up plenty strong for a folding knife.