Currently I primarily play on the PS3 (occasionally play on PS4 and PC, but PS4 is used by family and my laptop isn't quite up to snuff to do anything other than crafting and SCH healing Sastasha-Copperbell).

I came from FFXI and played with a PS2 controller on PC with a D-Input adapter and later a PS3 controller with the motioninjoy driver iirc (with Better DS3 when it came out of course, did not want that other one since it HAD to be online), played a bit of XIV 1.0 like that as well (at the 6-10FPS my laptop could push out at lowest settings). I came to the game with the full intention of playing with a controller.

Then the Cross Hotbar was introduced to 2.0 and is actually very good; much better than selecting a spell/ability/weapon skill through a menu or even through the macro shortcut bar thing like it was in XI and XIV 1.0.

I haven't had much experience playing with a mouse/KB layout on PC yet, laptop keyboard isn't ideal for it nor is the cheap USB keyboard I use to type on my PS3 and PS4. As soon as I get enough spare cash I'm gonna build a new rig finally, and eventually get a good clicky mechanical gaming keyboard to go with it :P

I'll definitely try mouse/keyboard again for XIV, but the controllers for this game is not nearly as bad as some people might think. It's not a perfect control setup, but neither is mouse/kb haha. All personal preference as I'm sure many people stated in this thread.