Determining priority between two
moves is a pretty mess. Generally, the more damage an attack does, the higher priority. So charging a smash does increase it's priority.
I was under the impression that ground priority determination based on damage was differential to aerial priority. Perhaps I am mistaken, but I thought they were two separate entities.
Of course many other variables are to be considered and speculated upon (such as disjoints). I recall DanGR having an interesting theory on priority. Unfortunately he does not appear to be active as of late.
Problem:
Determine whether or not Olimar's up-smash beats Wario's down-air by percent damage basis.
Assessment:
=Information regarding damage output of Wario's down-air currently unavailable.
=->Substitute similar move to situation (Pikachu's forward-air). Both multi-hit and semi-disjoint.
=Pikachu's forward air deals 12% total (5% minimum).
=Accounting for variance in Pikmin color damage output, assume red Pikmin.
=Olimar's up-smash deals 12% when sour spotted.
p1 Priority of a move is determined by single hit-box clashes.
p2 Pikachu's minimum damage dealt with forward-air is 5%.
p3 Olimar's minimum damage dealt with up-smash is 12%.
p4 Olimar's attack does significantly more damage by single hit-box clash.
p5 Olimar's up-smash should beat out Pikachu's forward-air.
p6 Pikachu's forward-air out-prioritizes Olimar's up-smash.
*Note: Elemental difference was accounted for. Even a fully charged yellow up-smash can be out prioritized by Pikachu's forward-air.
Solution:
Increasing attack damage may be a one variable in determining priority; however, it is not a solid state. From experience, Wario's down-air behaves like Pikachu's forward-air in terms of beating our up-smash. Though logical error can be found by inductive reasoning, it is an accurate model to demonstrate the point. As previously stated, DanGR had a theory of grounded vs aerial priority as separate mechanics. Experience has led me to follow his theory.
I do believe inference of charge is still related to Pikmin rocketing.