I have a BM 960, and most, if not all, the Spydercos mentioned above.
The 960 is a fine knife. It feels more "medium-sized" than do the large Spydercos, and is definately more politically correct, if that worries you.
The axis lock is wonderful, and it makes the 960 as truly ambidexterous folder.
I can't say anthing about a clip, I don't even remebver which orientation the clip is on this knife, since the first thing I did was to remove it.
One caveat. I would recommend buying from a dealer who will actually inspect the knife before sending it (or from a brick-and-mortar store). You want to make sure that the blade is perfectly centered when closed, and sharp right out of the box. There have been issues with the BM quality control over this. Also, you want to make sure that the opening mechanism is at that perfect point--easy to open, but no side-to-side blade play when open.
All of these problems are user-servicable for many of us, but I personally feel that we should be able to expect that the knife is in perfect condition when we buy it. Especially for a couple of C's.
(Before anyone takes it upon themselves to flame me--I own a couple of dozen BM knives, blue,black, and gold class. I usually have one on me (currently a 940)--they are fine knives. But there are a few problems associated with quality control, and I call 'em like I see 'em).
I personally feel that a number of things are important in a knife- blade steel, handle material, etc. The ergonomics are certaily important--for me, the 960 is a very comfortable knife to use, and it will withstand tough use. If you feel that the asthetics of this knife ligfhts your fire--then this is the one to buy. Carrying the knife of your choice is a great thing.