GnomeWorks said:
I'm okay with HP being more than just physical wounds, but this definition of their abstract-ness frustrates me to no end.
Let's say Bob has 30 hit points and an 18 AC. George the Goblin rolls a 19 to hit, so that hits Bob; George then deals 8 points of damage.
Assuming that when you hit bloodied is when you first take actual damage (seems a legit assumption), that means that Bob was not actually hit by the weapon - he dodges, or it's a near miss, or George screwed up his swing a bit, something.
...but isn't that represented by the attack roll?
Let's assume Bob is using a shield which gives him 2 points of AC. George rolls a 16 to hit - if it weren't for the shield, this would have hit Bob. Bob tilts his shield lightly to deflect the blow, taking no damage.
Next round, George rolls an 18 to hit, and rolls the 8 damage. The swing crunches in to the shield hard; not enough to bloody Bob, but his shield arm is certainly a bit sore, and Bob is a little more flustered. Next round, George again rolls 18 to hit and 8 damage. Thanks to his sore arm, this time George doesn't manage to quite get the shield to fully take the blow, and George's sword slips over the top edge of the shield and nicks Bob's arm - he is just bloodied.
The next round, George criticals and does 16 points of damage; Bob fails to get the shield to block the attack at all, and takes a nasty wound to the gut. He drops to the floor, bleeding badly, but not yet actually dead (-2hp).
Will the Warlord sees Bob drop, and yells at him to suck it up and get back on his feet. Bob spends a healing surge, and reinforced by Will's call, ignores the pain. On his next turn, he stands up and kills George. After the fight, he's certainly going to need to bandage up that gut wound, but he can soldier on for another half minute or so because he knows his team mates need him.
Celia the Cleric then calls on the power of Pelor, and divine energy surges in to Bob; this energy draws on his inner reserves, his gut wound is knitted back up, and the earlier nick on his arm also heals. He is no longer bloodied.