Sonic the Hedgehog (SatAM) vs Vivian (Nanatsu no Taizai): who would win?

Sonic the Hedgehog (SatAM) favored — Slight edge (~55%)

Sonic the Hedgehog (SatAM) · Sonic · With the Deep Power Stones

Tier

7-A

Attack Potency

Mountain Level

Speed

Massively Ftl+

Durability

Mountain Level

Vivian (Nanatsu no Taizai) · Nanatsu no Taizai · Base

Tier

HIGH 7-A

Attack Potency

Large Mountain Level

Speed

Sub-Relativistic

Durability

Unknown

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