I just purchased a pair of Addi Turbos, and i am in LOVE! They are the perfect needles. The nickel-plated allows my stitches to move along easily, and I can knit faster than I normally do, believe it or not. When I don't have the money for Addi Turbos though, I usually buy metal needles. But it also depends on the yarn. I have a few pairs of Clovers, but when i went to do knit with cotton, I nearly killed my hands trying. But with other yarns, such as slippery yarns (ceratin types of acrylic), it works better on the Clovers and not the metal pairs. The only problem I have with the metal needles is that my hands sometimes get sweaty when I'm too warm, so my needles get sticky and then I have to go wash thtem off, as gross as it sounds. My least favorite needles, though, have to be plastic, because it doesn't even seem like real needles to me, as they have no structure and I'm always getting slowed down because the yarn doesn't move easily. So I guess I would say I'm a metal fan. But I just ordered a set of KP Options, so I'm probably get addicted to those.