Weeping Angels vs Rot Grub: who would win?

Rot Grub favored — Slight edge (~55%)

Weeping Angels · Doctor Who · Base

Tier

9-B, up to HIGH 8-C

Attack Potency

Wall Level, up to Large Building Level

Speed

Immobile, up to Subsonic+

Durability

Wall Level, up to Large Building Level

Rot Grub · Dungeons & Dragons · Regular

Tier

9-B, up to 9-A

Attack Potency

Wall Level, up to Small Building Level+

Speed

Below Average Human, up to Subsonic

Durability

Wall Level, up to Small Building Level+

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