Fred, I see what you mean about small knife/small pins, I think that's what Jacob was getting at, too.
I generally feel less is more, looks-wise. I'm a huge fan of pretty grain also. The more interesting the handle material itself is, the less I would want anything else to distract from it.
I see a lot of really high-end customs and art knives that have so much going on, with mokume and mosaic pins and damascus and everything... frankly, my eyes find it hard to focus on a knife like that. Don't for one second think I'm knocking the people who make knives like that; the level of skill and knowledge it shows is simply stunning, and worthwhile for it's own sake.