Pre trial or not guilty w/bench trial??

There is no simple answer to this question. You'll need to discuss this with a lawyer and hire one to defend him.

In the state of georgia if you are a suspect in a crime and agree to take a polygraph but end up not taking it, can you be arres

You could be arrested either way. Don't take that polygraph. Hire a lawyer immediately.

A low cost appeal attorney is not going to do a very good job for your brother. And you will have difficulty finding someone to represent him for...

DA dropped original-brake light out- due to the officer pulling me over for third brake light, shouldn't whole case be dismisse?

Not necessarily, but what you describe may be grounds for a motion to suppress. You'll need to speak to your lawyer about that.

What is most likely to happen to me for missing a court date for Superior Court?

No doubt about it, hire a lawyer immediately.

Typically at least one probation revocation hearing would have been scheduled by now. Only his attorney will know whether forcing the issue is a...

Is it considered rape if I was 16?

It would not be statutory rape, because the age of consent in GA is 16. Unless he forcibly and without your consent had sex with you, it would not...

Does a municipal court have jurisdiction in matters preempted by state law?

You're going to need to provide more detailed information about your specific situation.

How do I get this charge restricted?

What's going on with the case? Is it still pending? If so, you can't get the arrest restricted.

You should discuss this with an appellate lawyer, depending on when this conviction occurred.