I kinda agree with everyone :roll:
I used to hate reverb, but nowadays nearly all of my patches in my modellor have a little "room" reverb on them - they're set like this so that they sound like the amps were in a room when I record "dry" tracks. I practice with them like this too, to get used to it (and because they sound a little more "lively" with it on anyway!)
My rule of thumb is "if you can actually hear the reverb, then it's usually too much". Of course though, I'm not often playing surf and stuff like that :lol: (so actually I kinda agree with Elliot - when it's rocknroll etc, then the old spring stuff gets dialled in...)
Any further reverb required for a song is added afterwards in the mix - depending entirely on what the track and the guitar part needs. I'm usually drawn to room and hall reverbs because I'm after a "natural" vibe of dry instruments played in a room of some sort.
If I was playing live again, I'd go for completely dry coming out of my amp and let front of house put on any reverb they feel is necessary for the band mix if the room isn't adding enough...
But that's just for the sort of music I usually play (blues, blues-rock, rock, 60-70's pop, etc) - if I was after a specific sound, all bets are off.
My advice would be to experiment, use what grabs you personally. But bear in mind that most of us when starting out put wa-ay too much reverb on! :D (And actually, I'm having to remix something at the moment, because I got over-enthusiastic with the reverbs, and I've only just realised that's why it's a spikey, mushy mess...)