GMMichael
Guide of Modos
I believe the whole problem for many is the drop under 0 HP.
I have no problem with anything healing if you are at 1HP or more. I don't think many do either.
But once you go under 0, it's magic or doctors to go back to positive.
Yup. It's the drop under 0 hp.
Different reason though: negative hit points are a bad idea. When you're playing blackjack, does the dealer accept negative bets? Negative chips? No. When you run out, you're done.
A character doesn't have to die at 0 hp. That's why my RPG has a "mostly dead" rule. But adding negative hp rules, negative hp feats, subsystems for getting back to 0 hp or higher, etc. is just adding bloat.
It's time for players, and especially characters, to start worrying about hp the first time that they get hit.
I'm going to mix the 2 main styles and use HP where for some creatures it is all meat, most are half meat/half stamina-luck-morale and for PCs (NPCs) and some monsters it is all stamina-luck-morale until down to -1hp when it is meat.
Meat is 1e healing, and stamina-luck-morale is 4e healing.
I love the way jody puts it: stamina-luck-morale. Each, along with "meat," is an important way that hp gets treated. Maybe it's time for D&D to define hp in more detail...or come up with another kind of hp.
So if the party has to complete the quests, get up to 15th level, and save the world from a looming threat, the party with the healer might be at it for a couple months. The party without the healer could be at it for over a year.
Neither of those is a problem by itself. But if the party gains or loses a healer, the timeline is suddenly either impossible or trivial. . .
And, personally, even if the party composition never changes, I'm going to keep the time pressure on regardless. So the party's with healers just face faster-moving threats, which leaves a bad taste in my mouth.
The party that must save the world is going to need one of two things: healing, or a ton of luck. The amount of healing that the party gets is an issue for the GM, not the PCs. If the GM is going to ask PCs to save the world, he's going to need to provide the healing to make it happen. The solution isn't to give healing to all classes; that just waters down the classes. The solution is to teach GMs how to structure their campaigns properly.