I prefer to use cloth (washable) pads but if I have to use tampons, I prefer the 100% cotton variety you can find in health food stores. They cost a little more, but I cramp more severely with commercial brand tampons. The commercial brands have rayon in them and a friend of mine suggested that it was the rayon in them that caused this reaction in me; she had a similar reaction. Also I read that rayon fibers can actually fuse with the vaginal walls .
If you are a virgin or are not regularly sexually active, I would suggest, if you use commercial brands, the thinner the better and also I did best in the beginning with the plastic applicators. I can't use plastic applicators anymore because they pinch me; I guess giving birth to two children stretched some things out in there . The cardboard ones hurt in the beginning but I can use them now which is good because the cotton ones use cardboard applicators.
I didn't like disposable pads: stick, pull, you know, just uncomfortable. I don't really like tampons because I can feel them more often than not and I wonder about the tampons "clogging" the natural draining process, not to mention that tampons are not sanitary really. Tampons are just uncomfortable and painful for me in general.
I discovered cloth pads when I was using cloth diapers on my second child. I really love the cloth pads. They can be a slight nuisance to deal with in washing them, but they absorb more, are more comfortable against the skin, you don't have to worry about running out (if you have enough of them to begin with), and surprisingly, they leak less than anything else I have used. It is an initial investment moneywise, but I think it pays off comfort-wise, health-wise, and environmental-wise. The cost of buying disposables is probably the same as or more than the purchasing and caring for cloth pads. I worried about yeast and bacteria but have been using them for maybe three years now without any problems. I hope that wasn't too much information; I just thought it's another option for those trying to avoid disposable pads.