Boxer vs Nanomech: who would win?

Boxer favored — Slight edge (~55%)

Boxer · Godzilla · Base

Tier
9-C, up to 5-A
Attack Potency
Street Level, up to Large Planet Level
Speed
Superhuman, up to Massively Ftl+
Durability
Street Level

Nanomech · Ben 10 · Base

Tier
9-C
Attack Potency
Street Level
Speed
Average Human
Durability
Below Average Human Level

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