Seriously though, this sounds like fighting game players. The classic "stick > controller" argument, which has now turned into "stick too slow, leverless controller is the only way". And then there are weirdo keyboard players, bat top versus ball top stick debates, which buttons are best, etc, etc, etc. I once competed in Super Street Fighter IV at Evo with a USB Sega Saturn pad, and despite that being in the "stick is the only way" era, I won a couple matches.
As many have said, play with what works for you. Bard should have to use a guitar controller though.
This is the also the worst debate we've had here for a while, and that's saying something!