Jack-in-the-Box Zombie vs Warden Eternal: who would win?

Jack-in-the-Box Zombie favored — Slight edge (~55%)

Jack-in-the-Box Zombie · Plants vs. Zombies · Base

Tier

8-B

Attack Potency

City Block Level

Speed

Athletic Human, up to Hypersonic+

Durability

City Block Level

Warden Eternal · Halo · Mythic Variant

Tier

8-B

Attack Potency

Large Building Level, up to Town Level

Speed

Superhuman, up to Supersonic

Durability

City Block Level

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