I decided to skip looking for metallics and focus on the brown I was in the market for. I found two candidates and decided to put them to the test.
As a side note, I have several friends that swear that MAC's Fluidline in Graphic Brown (dark brown with shimmer) was the best eyeliner ever made, but because it isn't a part of the permanent line and is only rarely repromoted, we are all in search of a suitable replacement. This creme liner might just be comparable!!