i use both depending on how i feel. i know that sounds lame, but they dry similarly so it doesn't usually matter. canton candy paint or gracious me shadestick for pinks, and i have a couple of other colored paints, but usually bare canvas, stilife or beige-ing shadestick as staples.
imo, paints are easier to use since they don't require as much effort to put them on as shadesticks do (i wear contacts too, so the shadesticks get a little uncomfortable), but the shadesticks sometimes do a better job of enhancing the color of the shadow.