Best:
A complete redesign that includes-
1. An fsmash that iterrates plasma beam from the metroid games into a mid ranged chargeable oscillating burst that functions like mega mans fsmash.
2. A down b that replaces bomb with beam switch on neutral b to ice beam that results in less knockback than charge beam, but gives us a freeze.
3. Replace awful dsmash with power bomb drop that kills at reasonable percent.
4. I love dair, but she still needs bomb jump, so make dair the aerial down b bomb that we have now, but still spikes if bomb hits.
5. Replace jab with what is now fsmash, so that it functions similar to Ganons jab, with less knockback than current fsmash but is a single powerful blow with solid get-off-me knockback plus sets target on fire cuz that would be sweet.
6. Give her the Project M dodge, and make morphball a crawl, cuz it just makes sense.
7. Fix the rest of her janky moves like usmash, uair, and neutral air so that they hit more reliably.
6. Charge shot chargeable in air for goodness sake.
7. Reduce landing lag on all aerial projectiles. Even if the landing lag on aerial normals remained, this would reinforce the idea of her being a zoning character.
Worst:
Keeping her the way she is now.