Yixuan vs Hanazawa Teruki: who would win?

Yixuan favored — Slight edge (~55%)

Yixuan · Zenless Zone Zero · Base

Tier
7-C, up to HIGH 7-C
Attack Potency
Town Level, up to Large Town Level
Speed
High Hypersonic, up to Massively Hypersonic
Durability
Town Level, up to Large Town Level

Hanazawa Teruki · Mob Psycho 100 · EoS

Tier
7-C
Attack Potency
Town Level+
Speed
Subsonic+, up to Massively Hypersonic
Durability
Large Building Level

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