I've tried a few different circs and here's my take:
1. susan bates (plastic in smaller sizes, metal on 10's and up - i think). hated their cables but soak them in HOT water for a couple min then straighten them out and its not bad. these are not expensive needles and ok to knit with
2. denise interchangeables (www.knitdenise.com
) LOVE them - these are plastic and so far have knitted with all but one extremely fidgety yarn. I like that they are easy to use and think the big thicker cables are better for the stitches.
3. bamboo needles - i have not tried any bamboo circs but i love my crystal palace bamboo double pointed needles so if i do need some "fill -in" circs to augment my denise set I plan to buy bamboo circs.
hope this helps !