Dear Dalerich,
Brass versus Nickel Silver is purely a personal preference. As far as strength properties, Brass and Nickel Silver are very similar - in fact, most people consider Nickel Silver to be simply a 'white brass'.
One thing that I found, is not all combinations of blade finishes, inlays and handles quite work together aestetically. I'm no Mr. Blackwell, but I find that Gold BuckCote and Nickel Silver clashes, whereas Black BuckCote, Black Oxide, gray matte finish looks great with Nickel Silver.
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pete quintanilla
Buck Knives, Inc.