Based on features, I'd go with a Coote or a Kalamazoo. The Coote because you can choose your own motor, setup, etc. The Kalamazoo, because it is more versatile, stronger motor, has attachments/accessories, etc.
I used to grind bare-handed. That was great, except that sometimes the blade heats up real fast and slightly burns your fingertips before you can dunk it. After 100 of these lil' mini-burns, it takes its toll on your hands....
So, I bought a pair of these gloves:
They're not as stiff as regular work gloves. I actually feel more confident and in-control wearing these, than I did working bare-handed. I knew that if I slipped up and let my finger hit the belt - I'd still have some skin to work with later....
I can still feel the heat through the gloves, so no problem there.
Plus, since it's latex and mesh, I can dip my hand in with the blade in the bucket of cold water....helps cool it off too....
:footinmou