1) How long have you been playing?
late HW/early SB

2) Do you use controller or mouse/keyboard?
Mouse and Keyboard

3) Do you find healing too boring, too hectic, or just right?
Imho, healign comes in two distinct flavors:
Too boring (usually with competent groups)
Fun (usually with abysmal groups in casual content)

4) Based off question 3, which content are you referring to.
Mostly more casual leaning content (Dungeons, normal raidsand trials, 24 mans), though I do heal the odd Ex trial from tiem to time with the FC

5) How many healers have you maxed and which is your preferred to play? Which is your least preferred?
All of them.
used to be SCH, and I did bring it to 80 first, but that was not because I really enjoyed it's ShB incarnation, but because it got me a magic dps 'for free'.
Atm, it's probably AST, because that still feels busy and engaging with the half arsed card we have left compared to the other two healers 'noone's going to die in the next 2.5s, guess another nuke it is'