Personally, I feel SMN and MNK got the most out of the previews as far as being shown what they were being given and what was shown. That Dreadwyrm Aetherflow and additional uses for Greased Lightning is too good, as well as an option to regenerate their own TP through chakra/meditation.

The Weakest? Gonna have to be bard followed by ninja. Really not much to show for a bard, it really feels like a wasted song to turn them into a turret that disables auto attacking (no barrage), and not much else aesthetically. Ninjas I also feel like they got very little addressing to what new toolkits are given... something about huton extension through combos and enmnity misdirection.