It's not that I am a prude with my comic tastes but Garth Ennis' stories just always seem to suck to me. And I was a great follower of GL through the whole series. Even Ben Raab's stories were better than Ennis'. (And his Hitman/Green Lantern crossover was so so stupid). Maybe its because Ennis' world always has the same types of characters with the same attitudes, the types of characters that just don't exist (except maybe in the fringes occasionally) in the real world. They are just caricatures and that is kinda lame.
My many previous Ennis dislikes aside (like how much Preacher sucked after all the hype), I try to be open minded. Truth be told, my library has a Constantine trade by Ennis that I just read and it was the first Ennis story I actually enjoyed (where he ends up breaking up with Kit).