I'm assuming that your talking about the one's with the heel that is like 4 inchs from top to bottom ?. I don't like those at all, I use the narrowest chef's knife I can find at work, and only one with an 8 inch blade.
I'm a big fan of 'knuckle clearence'. I prefer my vegetable cleaver over just about any of my other knives (except my fancy chef's knife). I have been using a clever for 5+ years; won't give it up for all the bok choy in China! The 4" width allows for high-velocity knife handling.