I personally don't see why so many people hate Hal Jordan... I've never found him boring or viewed him as a "cardboard cutout" type of character. Like I've said before, I've always viewed Hal as the DC Universe's version of James T. Kirk. Cocky and suave with the ladies but also a total hardass when he has to be and afraid of absolutely nothing.
I think a lot of people these days just hate him because they grew up knowing Kyle as the main GL. But guess what? Those of us who were around when Kyle took up the role were pissed and didn't like him at first. He grew on me eventually, but I was still a little irked that one of my favorite characters was first driven insane and switched sides... and THEN went completely overboard and tried to destroy the universe. Granted, I respected DC for making such a bold move but it never sat completely right with me.
Then Rebirth happened, and while some people might view it as a cop-out, it's probably the best cop-out I've ever seen. But of course, once Hal became the "main" GL again, all of the Kyle fans got pissed. I can sympathize, but I think you also need to take into account that when Kyle showed up, some of us were like "Who the hell is this guy? Why, out of all the Green Lantern characters out there, did you feel a need to create someone totally new and make him the central character?"