I buy BMK for stilettos, daggers, boot knife you can decide how wide, how long, if you want the blade edge to go all the way to the hilt......
I don't have the patience or desire to use a butterfly handle, on OTFs I've carried most brands & unless your going to pay a custom maker the blade just gets loose when it's out, I mean it has a wow factor but it just is to loose after it's open & for use.
For a good pocket knife I like pro-tech, the mechanism is real strong & very solid when open, holds a good edge.