In a raid scenario there is no better option than mouseover healing. People may say "I've been clicking since Vanilla that's how I will always do it" - This is simply not as effective.
Mouseover healing is required for elite paladins due to regaining mana through seal of wisdom, and for elite shamans for purging and wind shearing enemies.
Please state which addons/methods you use for mouseover healing. I am open to new ideas to progress my PVE healing skill.
I use grid with raid debuffs addon, as well as many mouseover macros consisting of
Code:
/cast [target=mouseover] healing wave
I hover my curser over the grid frames and press my keybinds to heal, dispel, and assist fellow raid members.
An example why mouseover is superior to clicking.
You're tanking as a paladin. Someone in the raid is getting attacked by a melee based enemy, you need to give them hand of protection without losing threat on your current target. You mouseover their raid frame and press your keybind "/cast [target=mouseover] hand of protection" - You just assisted them without deselecting your current target.
Please if you still click heal, at least try to mouseover heal at least for one day. I assure you'll notice a great difference in effectiveness.