As a healer I've had nothing but massive amounts of frustration over trying to find a nice spot for the party frame so that it's neither in the way of my view so I can see attacks, but at the same time easy to see so I can heal those that need it. I think what could solve this issue for healers could be to have an option to make the party bar horizontal instead of vertical. This would allow healers to place the bar in better locations much akin to their own heal/mp/tp bars and the enemy health bar. The idea is that when horizontal it would be 4 columns of 2 health bars, for example:

Player 1 Player 3 Player 5 Player 7
Player 2 Player 4 Player 6 Player 8

This would allow better organization of jobs (one column healers, one tank, other 2 all dps) and allow better more choices in placement and easier healing for some over the vertical option.