User blog comment:LesStudios/What Pacific Rim Kaiju Would Last the Longest in a Battle with Godzilla?/@comment-3367060-20140812193834/@comment-26128914-20150608201453

1. slattern

2. leatherback

3. otachi

4. scunner

Reasons are size, strength for slattern, emp for leatherback, otachi is smart, strong fast and acid, scunner is large and brute. Also, this is probably really wrong, but since scunner was destroyed by nuke, and slattern's arms were hanging by a thread, that connection is stronger then scunner's entire body, logically.