What's my favorite sporran? If by that, you mean which sporran I wear most in the modern style, it would have to be a Stillwater Nightstalker - brown leather, black leather, or black nylon.

Another modern alternative, worn only with camo kilts, is a Spec-Ops pocket organizer re-purposed as a sporran. Have a look: http://www.youtube.com/watch?v=xY6RiSfA2PM

Sometimes a sporran is not worn at all. UtiliKilts, Freedom Kilts, and other have pockets.