1) Shotokan
2) yes
3) Medium contact and sometimes sensei lets us throw in some takedowns and grappling along with letting us spar using our own kata bunkai to test it out and see if what we have come up with works. (not all of the bunkai of course because some of it would be too dangerous, so then we practice it on a partner slowly if our bunkai has dangerous joint locks.)
The more you sweat in training, the less you bleed in battle.