JacktheRabbit
Explorer
I also don't like the automatic back to full hit points.
I run a long rest regains one hit point, and that hit dice can be used to regain more, so after a couple of days of 'tough adventuring' the players are starting to wear down a bit, I have found it works well.
I also play if the first death save is failed then I roll on the 'serious wound table' in the DMG (don't have my books at work which is just annoying and can't remember what it is called). This makes going to 0 more dangerous and when a party member goes down the other players rush to give them aid - something I like a lot and gives it a gritty feel.
Another item I like once mentioned by another person here on EN was not rolling death saves at all. Basically a player that was put to zero marked every round they were at zero until someone came to save them or combat ended. When either event happened then the player rolled once for each round that passed.
That was players could no longer be horribly meta and ignore a downed player until they hear that he has failed a save or two and HAS to be attended to.