I stumbled upon Saturday Morning Breakfast Cereal (http://smbc-comics.com/) comics last week. The humour is very much like Perry Bible Fellowship and definitely off the wall.
AND when I was on SMBC, they had a link to this comic: Gone With The Blastwave (http://www.blastwavecomic.com/) a comic set in a post apocalyptic game / movie world, similar in ways to Red vs Blue but a bit deeper and a great artistic style.