Princess Bubblegum vs Rampaging Sayaka: who would win?

Princess Bubblegum favored — Slight edge (~55%)

Princess Bubblegum · Adventure Time · Pure Elemental

Tier

5-A

Attack Potency

Large Planet Level

Speed

Ftl+

Durability

Large Planet Level

Rampaging Sayaka · Puella Magi Verse · Base

Tier

5-A

Attack Potency

Large Planet Level

Speed

Sub-Relativistic+

Durability

Large Planet Level

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.