Hi
I have the same problem. I have a couple of friends who have done sit ups using an ab roller, their bellies are as flat as surfboards. I think if you really want to lose it, sit ups would be the way to go. I am going to try doing them each dayt soon!! However I hate them with a passion too!!
Good luck with it all, Hope you find a way to lose it, when you do, give us your tips!!!