Both knives are very good knives, and like has been previously stated a number of times, you really can't go wrong with either.
For myself it depends on what you are doing. If you are going do do more slicing than say carving then I would chose the FFG Delica. (also the Centofante 3 is also an amazing knife for slicing, and is the the one I love to use the most currently) If you are looking for a hard use knife, I personally would chose the Native. I love how it fits my hand and is a great looking knife. My only gripe is that my Native is quite stiff even though I have had it quite a while and play with it a ton. Other than that it is a very tough knife!
Let us know what you choose!