Mike:
From what I've used (which means this does not include ALL options) Alclad is very easy to use. I'ts even pre-thinned. The drawbacks would be the cost of buying several shades and cure-time needed to avoid problems. In the end it's very realistic.
Of the acrylics, I've tried Citadel products and the silvers are very fine pigments. They thin nicely with Tamiya thinner.
I have also tried, and like, the Gunze Sangyo laqcuer line of acrylics. They need sealed, but they are relatively finely ground.
I've not tried them, but I've not heard any negative reviews of the Talon products (by fellow GB member Hawkeye Hobbies). THose that have tried them, like them.
I've only tried the Tamiya acrylic XF-16 Aluminum and their chrome product. They are admitedly old bottles, so if Tamiya has re-formulated them, please disregard my comments.
Whatever you go with, I look forward to seeing your pics!
Charles