Green Lanterns 66 and 67 didn't make a whole lot of sense. Hal is yellow and Guy is red, and they are fighting and evil Guardian, and personifications of the emotional spectrum and then they get captured. Sinestro and Indigo are stuck in a book (THE book if I remember Blackest Night correctly). Then in 67 lots of other Green Lanterns arrive and Hal and Guy get free, Carol, Sinestro, Indigo, Atrocitus, Larfleeze are all released from the big black book and the rings don't go where they are supposed too.
Green Lantern Corps 1 (new 52) was OK. Guy and John can't settle on earth, or rather can't get jobs as it is well known they are Green Lanterns and prospective employers can't face the increased insurance, potential abscences and in John's case, safety standards. So they head to Oa, meet Salaak and piggyback onto a scouting mission. Interesting stuff, but I don't feel the urge to pick up other issues. I'm happy dipping in and out of these ones.