I've played an inquisitor healer since beta. The targeting of friendly players in PvP is HORRIBLE. The only reason it's not as bad in PvE is because people don't have to jump around or move so much.
The F-key targeting isn't viable because half the time the F-keys are inconsistent, and I have to spam through before I can target the right person. By the time I hit the right key, they're dead.
Mouse click targeting is the absolute worst I've ever seen. Coupled with pretty much everyone lagging, the targeting is way too specific, and if you don't click in the exact right spot it simply won't target them. Then they die. If you're going to have click targeting be so finicky, you need to add another way to target to combat the lag difference.
Targeting through the group window isn't viable as 90% of the time, my group window values don't update. Everyone shows 100% until they die.
Please fix the group window refresh rate and the click targeting sensitivity. I'm tired of letting people die because I couldn't get the game to target them. The fact that targeting is so hit or miss makes it pointless for me to try to heal anyone. The frustration alone makes it a terrible role to assume.