Oh, I LOOOOVE pizza. I think it's okay to eat anything you like, as long as you do it in moderation. There is no need to cut pizza out of your diet 100%. Just be aware of the calorie dent it will do in your food budget, and compensate elsewhere.
Make it a conscious choice to have pizza if that is what you want. Don't just give in and go over your RDI on it. :)