For wood and perhaps even finishing steel, which do you prefer and why?
I've got a combo belt/disc grinder, and my disc is currently in a state that bicycle enthusiasts call "rim taco" somehow(got it on craigslist). I was just wondering to myself if I should just not bother fixing it, and it got me thinking that there's gotta be a million opinions out there on the differences/aptitudes.
FWIW, I've only ever used belt sander/grinders, and bench grinders. My dad just never had a disc sander when I was a kid, so I don't have an opinion on the differences.