Birdsong Black-T has a very good reputation indeed.  But as always, let me be the voice of dissent.  Teflon is absolutely rust-proof, and it looks great.  It will scratch, however, and when it does, rust can get in and under the finish.

What I would respectfully suggest is first to ask yourself what sort of look you are interested in--military, hi-tech, whatever.  Once you have an idea of the color, gloss vs matte, and texture, then you can analyze the best finishes to meet your desires.

Black-T will be expensive, and if you are going to spend a lot of money, I'd probably suggest some other options.