What is your Stump Grinder Tooth of choice?

[pavement99]

I'm curious what your favorite brand and style of tooth/pocket is because www.TreeStuff.com is in the process of bringing in a line of teeth for the store. I know which way I am leaning, but it would be cool to hear everyone's pros and cons and generally why you use what you use to grind stumps.

I'm specifically thinking about Rayco, GreenTeeth, Leonardi Tomahawk, etc...