Controller is great of only because I keep my DPS slotter to L2+R2. My cooldowns are either on the main crossbar or a double click of R2 for a little side cross bar.

I can see advantages and disadvantages for both. I say of you're a class with less buttons like the ones I play (Whm, Mnk) controller is great.

But really, once you have where all the buttons you pressed internalized, whether they're immediately visible or not doesn't matter.

M/kb does help for healing in an Alliance tho. I actually have a mouse for my PS4 for such delicate targeting.