In SB

Everyone lost crossclass, one of the worst design decisions in the game. It was apparently unbalanced for savage- well just ask for restriction from savage not destroy a good incentive for players to level alt jobs. It gave job customisation, something lots of players are asking for now.
Everyone also had dots consolidated

Whm lost about a dozen abilities in SB, and got forced into being a "Pure healer" somehting that is unacceptable to play in ffxiv's encounter environment and had a pointless gauge to boot
Astro lost Stellar, Disable and its mp recovery (luckily it still had old ewer which a good astro needed)
Sch lost eye for an eye and another ability i dont recall the name of.

in Shb

Astro lost its cards, Time dilation, Celestial opposition time+stun effects, bubble effects and received nothing but nerfs and redundant heals
Whm lost aero 3, but then again they had already been destroyed in SB
Sch lost its pet, dots, shadowflare and energy drain but they were forced to give energy drain back because it broke the job.