Well they are totally different. Envy is more romantic, BK is more versatile. BK doesn't really have the woods Envy does, and its sweetness comes in more of a quasi-gourmand way than in the spicy way like in Envy. Since both can be had for quite cheap, I would get both. I have Envy and am about to buy BK (I have sampled it a few times). You should do the same. But as far as comparing them, they are VERY different so that doesn't really work.