I like Jim Dunlop plectrums. They have a textured surface that gives plenty of grip and they're consistent, you can buy packs in the thickness you like rather than mixed sizes and the company has been around since 1965 so it's pretty likely they aren't going to dissappear overnight. I find the consistency is better than buying different picks from different companies in different thicknesses and materials. Nylon isn't necessarily everyone's choice of material, it's a little softer than many of the other avaliable options and they don't come in lots of bright colours but I like that when I lose my favourite pick.. it doesn't matter because I have a dozen more that are absolutely identical.