Alright, Mr. Spock-in-the-middle-of-Pon-Farr, you want me to regard your points? Very well.
You say the Sith should have been nothing more than anti-Jedi who have no further motivation than to control everything they see. Well, that's what they've been ever since TPM came out, and I, for one, find that take on the Sith utterly shallow, boring, and two-dimensional. The Sith -- like any other villain(s) -- should have some depth and substance to them.