I have a low tolerance for Legacy characters, so if you're the type of fan that enjoys or likes that, I think it's not difficult to overlook that frustrating part of Hope.
For me it's a combination of that, the annoyance of her use in several plots (AvX still stains her), and there just not being many stories I enjoy her in.
I think Generation Hope was actually her best incarnation, because I liked the implication her powers had a dark and manipulative side to them. Her interaction with the Lights and now the Five is still interesting, but it never gets really delved deep into. When she's being a straight-forward Messiah, she's much less interesting.