I have a macro /script RepopMe() that releases them all at the same time. If I'm in a big fight where more than one dies, it usually means all will die. So, keep fighting and take as many with you as you can, then hit that macro so they all release at the same time (putting you at the same graveyard). If I only lose 1 or 2 and the threat is gone, I rez them and go on about my Ally killin'.