Garen Crownguard vs Bookworm: who would win?

Garen Crownguard favored — Favored (~65%)

Garen Crownguard · League of Legends · God-King

Tier

3-C, up to 3-B

Attack Potency

Galaxy Level, up to Multi-Galaxy Level

Speed

Subsonic, up to Massively Ftl+

Durability

Galaxy Level, up to Multi-Galaxy Level

Bookworm · My Little Pony · Inside the Story World

Tier

4-A

Attack Potency

Multi-Solar System Level

Speed

Infinite

Durability

Multi-Solar System Level

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