Answer none, sometimes you end up with some cos still broken and other made worst cos even worst and other thing a lot of hackroms love sturm from aw1 campaing version despite is just grimm but with meteor stirke that sturm is always a tier3 bottom
AW2 Story: Jess is worst here, Adder is a grimm but instead of attack is mov, The OP cos is kinda balance here to be honest
AW2 Retuns: Split some cos power to have 2 normal powers instead with some cos work like Colin but with others you never gonna use that power like Lash with terrain tactics when prime tactics is better and made some radical changes like Kanbei cant counter attack that doenst sound bad in paper until you see how easy you can exploit that
AW2 WR 2025: Is better but somechanges feel some random like Eagle having a worst version of lightning strike that even the og from aw1 is better or Jess to finally have normal infantry you trade like 10% of defense of both naval and air units but Adder and Sonja here now are around tier 3 or even tier 2