The Ultimate is a  solid, dull reactive ball with a low RG, and it'll go longer and snap harder than the other two.  Good if you don't like particles.

The Warp Zone is either low or medium load particle with a medium-ish RG core.  In terms of reaction characteristic, it's inbetween.

The Swamp monster is a high load particle with a high-ish RG, and that thing will have a pure arc because of the high load, since it will want to hook as soon as it touches.  Make sure you use it on heavy.

All of them are tweakable, and if properly taken care of, they will have a good life span, especially with all those different methods, like soaking.

Hope that helped.
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