I used Poser before there was DAZ Studio, but switched with DS’s first release. To be honest, it wasn’t really a switch because I had lost interest in Poser and was mostly using 3DS Max with V-ray. I do think that V-Ray is superior to Iray, but I haven’t bothered to find a hack for V-Ray and Iray is good enough.
Lighting in Poser was always my bane. Poser users, does the software still use the pin cushion?