healing....sakura healed naruto from 2 days of wounds in like 5 mins i dont think tsunade is above sakura i say they are about even
Tsunade is currently living through getting dissected by madara, if sakura went through what tsunade is currently going through she would be dead. Its arguably tsunade's uzumaki DNA that's keeping her alive.
chakra supply no because sakura has the bestc hakra control meaning she makes her chakra way more by how well she controls it and puts none into powerful jutsu by using it correctly
Tsunade is a senju/Uzumaki, her chakra reserve skyrockets past sakura's. Its takes tsunade a week to build up the yin seal, how long does it take sakura? Lol
summoning - simple tech so if sakura gets it they will be even because its a low level tech
Slug summon is a high level tech, katsuyu can survive getting torn apart, she tanked a chou shinra tensei, & she can transfer chakra similar to naruto & kurama's cloak. Katsuyu can also spit acid for an extra attack, adding for a long range technique which automatically makes her more versatile than sakura (short & long range attacks).
versitility - i say sakura she is yonger faster and does not waste power in looking younger
Tsunade is faster, rewatch the 5 kage vs madara im not pulling up scans, tsunade is zipping aroung the whole battlefield in that match. Sakura has
no notable speed feats, the only thing is that she can jump as fast as she hits a target....Not that impressive speed wise...
taijutsu - again i say sakura she has been fully trained and is yonger and in her prime
Again, Tsunade is faster, strength means nothing when tsunade has the advantage over speed. Speed is way more valuable in a taijutsu battle so tsunade is better, experience also refines her techniques & puts her on another level completely.
What youre saying is that a 16 year old who just got his black belt is now a better fighter than his 60+ year old black belt master, uhhhh i dont think so Lol.