This would be better for the Benchmade Forum at Benchmade.com, or the Blade Discussion Forum.
However, the question was asked in the main forum a couple days ago. Not in comparison with Spyderco but in general. It seems that Benchmade's blades are much more difficult to sharpen. You generally have to take alot of material off, because their knives are sharpened by hand and the angles aren't standard or even. Then work it with a really fine stone for quite a while. I don't know if it will turn out like a delica, but you should be able to get a good edge.