Realistically, Bard will always be top DPS because of how fights/enemy AoEs are currently implemented and the problems other classes suffer. The simple ability to attack while on the move will always put Bard one step ahead of the rest unless enemy AoEs and adds are radically changed.
I must agree to this, as someone who used to play WoW, the mechanic in FF14 is normal, some are even easy to me. Almost all of them are "avoid that red line/avoid the direction of that boss", which, as long as you didn't lag, you should have no problem.

If SE ever wanted to increase the difficulty in those fight, they should make the boss do targeted debuff(The doom in Temple of Qarn for eg, that's a good example, but poorly designed) instead of spamming AoE skill.

Then again... we still have console to worry about. I'd love to see how SE work their way around this problem, as increasing difficulty might make it imposible for console.