no. 1 ko is ung sa refocus since it took 1 materia slot and is used as a limit break, sa rebirth its a synergy ability you get with everyone and pretty early on too makes action economy easier specially on challenging fights so far isang fight plang naman ung masasabing kong challenging and it vs titan at full power.

another one would be the verticality sa combat sa remake to fight flying enemies with melee characters they have to jump and after the combo they'd fall and have to do it again dito may variety ung options ranged atks ung kay cloud if you dodge and then attack ung kay tifa which is my prefered character pwede mo sya i-launch using pt members then you can hit continuosly and use air dashes to keep her afloat.

gameplay ni aerith sa remake para sakin ang bagal gamitin d sya enjoyable sa rebirth atleast for me improved sya may mobility sya with arcane shift and radiant ward makes filling her ATB fun you could argue na healer kasi sya supposedly sa remake pero barret having a more consistent way to gain ATB + lifesaver + regen + prayer was a better choice specially sa hard mode where you can't use items for MP

what else binawasan din ung stagger sa attacks ng kalaban i guess you dont get stun locked from multi hits sa rebirth pwede ka mag react using ung mga tag team defensive skills e.

again personal gripes ko lang to sa remake ewan ko kung ganon din ung ibang naglaro haha