I love red Chiagoo and of course HiyaHiya, the best of intechangeables needles and I have used a lot of brands. I good like that hiyaHiya made same 1.5-2.5 interchargeables as chiagoo do
Chiao Goo bamboo, hiyahiya steel, Addi (but not the sharp one), KA bamboo, Holz&Stein ebony ... I decide upon the yarn I have to knit, but I hate KnitPro!