I really want to check out the G1 and G.I. Joe vs. sets. I was wondering if anyone has these and can tell me the quality and such and how they are set up. I never bout one and was wondering do they just slap all the comics in order or are the alternate covers in it with sketches and other bits of info? Also what is the difference between the two (omnibus and tpb) and are there any recommendations as to others that are worth picking up? Thanks guys.