I only picked up the two Greens (will probably pick up Earth 2 later, and I'll get Swamp Thing in the trades)
Green Arrow was the best and tied into the main weekly really well. So glad I read the weekly first though otherwise the one-shot would've spoiled that nice reveal at the end.
Green Lantern was so-so. It was nice to see Relic, Krona, and the Black Lanterns back, but the story itself was actually quite generic.