Misten has it right; the best thing to do with your three hearts is rev someone; then both of you have two hits left, then grab a heart and rev someone else. Then you have three people, each who can take two hits, as opposed to just yourself with 3~4 hearts, who can still only take two hits. Overall party survival increases with the most "hits" between the group, and the last heart rule keeps that number at a constant when you're at low health.

However, I also understand the important of making sure you don't die trying to rev them, and have to agree that some people are simply impatient. Generally, the rule should be to spectate the survivor and watch them, see where the hearts are for them and what they're doing. If it looks like they're kiting, grabbing hearts and circling for revs, there should be no problem. The issues should only come up if the survivor just sits back in a corner and tries to one-man-army everything. That's the kind of person that introduces party wipes, and has no place in any respectable team.