I have both and I think WinkCZ's are outstanding. Chris CZ's aren't bad, but I can absolutely tell the difference. However; you cannot beat the price for Chris' - I got 8 stones for around $35 I think it was.
Here is a video I just took this morning LOL (imagine that)
Chris CZ's -
2 x Light Champagne 10mm Round
2 x Light Champagne 8.2mm 8 Hearts and Arrows Cut
2 x Light Champagne 9mm Old European Cut
2 x White Cushion 7mm