So does learning curve = accessible tools, access to dmg, lvl effort to win? I mite derail the topic bcos id take away the clothes factor.
If thats the def, imo scII ivy has it easier than scIII as she has everything and more accessible to dmg than any series. Sciv does more dmg when factored how many strong moves she has but hands down hardest to access. It can also be argued scI is easiest bcos she has hardly anything to work with and but takes more effort to win bcos shes weak. Sciii has it better than scI, bcos despite her moves got separated by B+k, her new moves were great for poke and pressure but execution such 66k>se cs was a barrier to her key mixup.
So my order: scI>scII>scIII>scIV. (ease to win not factored bcos scI def not come first, that is below)
ScIV>scII>scIII>scI.