Good song, great topic.
Some of the rhythm guitars sounds distant and roomy.
I reckon you need to vary the panning so the places they hold in the stereo image don't overlap much and/or do some EQ carving so that the guitars aren't treading on each other too much.
If the organ is stereo that would explain some of the mid build up and overlap - if you are able to render it as a mono file you'll find it MUCH easier to mix as there's a lot of information but little definition in a stereo Hammind's left/bass side.


Cheers
rayc
"What's so funny about peace, love & understanding?" - N.Lowe