I always stop at Sbarro for a slice and coke while visiting SM City Clark Mall. It's the nearest thing to NY style pizza that you'll find in the area and they DO serve by the slice. The bonus here is instead of the usual canned coke you can order fountain drinks. Reminds me of my days as young boy, stopping at the local pizza place for two slices of cheese and what I consider to be real coke! Unfortunately, this location serves up a very hit-or-miss variety of foods. The pizza is often totally under-cooked and barely edible, even with the requisite warming-up in the oven. The non-pizza foods are horrible, to say the least, although I think this is specific to the corporate recipe book and not the location. Service and staff are all top notch and work in a quick and methodical process. Plenty of seating with potential for people watching. In all, if you're visiting the mall with a hankering for a slice, this'd be the place.