I'm no fan of Obito's...In fact I dislike ALL the Uchiha's (yes itachi included) An no he isn't a very good villain by villain standards in general. YES RIN is the main reason why he did what he did. But I'm openmined enough to see it wasn't the ONLY reason.
Now for the part in bold:
So in order for a villain to be a good villain in your opinion is to have no motivation at all....Yeah that's what he was as the masked man. A Nobody. He even said so himself. So a great villain is one that has no history, no reason for doing what he is doing only for the sake of destroying everything.
Your reasons are just as lame as the so called fanboys you labeled others for defending him. Get off your high horse dude. You wouldn't know a good villain if he d**k slapped you in the face...
Sorry that was mean of me. I apologize
But don't start labeling people fanboys because they don't share your opinion.