User blog comment:Drakan95/The Zodiac Killer vs Bill Cipher. Epic Rap Battles: Cartoons vs History. Season 2/@comment-27933547-20180403182034/@comment-27933547-20180403193141

They're both teams of outlaws who banded together to stop evil.

However, The Seven Deadly Sins is a group of former knights who were wronged of crimes while the Guardians of the Galaxy are a bunch of roughnecks who do commit crimes (albeit heroes nonetheless).

If you do start watching Seven Deadly Sins, here are a few suggestions:

A.) Watch the English Dub, I prefer it over the sub.

B.) At the time I'm typing this, Season 2 is out, but with no dub version yet.

C.) DON'T READ SPOILERS! (Trust me, there is some really good stuff later on).