Gentlemen - The OP's original question was what do you use. Everybody has materials they like and materials they don't like. It is fine to point out the disadvantages to each material, but we have to keep in mind these materials were all developed for a purpose and they all work very well in those systems. Melamine is an excellent material for Euro-style cabinets. Shop birch plywood is an excellent material for stain grade cabinets and it is my opinion that MDF makes a great paint grade cabinet. Even particle board has its place. It is a great sub straight for laminate tops. This is my opinion and knowledge of the materials based on 50+ years of cabinet making experience. I will freely share my experiences and knowledge with anybody that wants it and if you read Sam;s post #26, in his last paragraph, that's pretty much how I feel too.
Thanks John
Don't take life too seriously. No one gets out alive anyway!