these knives are very different in that the leek is sort of a delicate gentleman's knife whereas the native is a much burlier EDC. The steel for each knife matches the mission - you will get much better performance out of the AUS - 10 (Better yet I think they are coming out with an S30V model too (??)). The leek looks nicer, I think, esp in rainbow configuration, and especially compared to the Zytel-handled Native, which ain't much on looks but is a solid performer. Hope this helps.
edit - oh you said native SS. That is a LOT of steel in the pocket, compared to a leek, so it will be fairly heavy. but the fit & finish will be better. The leek is ok on f&f but the SS native, when you can find it, is sweet.