What is the difference between LLC, Scorp and Ccorp

[John Ryan]

I am just starting out and part oif my plan is to form a corporation. It will consist of me and my wife. What is the difference between a LLC, SCorp and CCorp? Is it just the taxes paid and structure of the corporation. Also, when I file to be a corporation I have read that I do not have to do it in my home state. I could do it say in Nevada or Delaware to take advantage of there pro business tax policies?? is that correct and is it advisable to do that?