I'll go even further than Chess on this....rather than compressing the snare, I usually put an expander on it. There's not that many snares that I really want to hear the shell ring on, and since the snare tends to get mixed pretty hot, I don't want to hear the bleed either. An expander takes care of both of these, and gives the snare a nice crack. The exception is if it's a really nice snare that rings out nicely, in which case I'll just leave it alone. In either case, if the drummer hits a few too soft or hard, I prefer to spend 10 minuits going through the track and editing those hits to bring them up or down, while simultainiously fixing any early or late hits.
Cheers, RD