I have won at quite a few. I love to play slots myself, they are my favorite. The casinos which I have won the most at and cashed out at are 
http://g3.casinoshare.com/href.g3?mi=118&ai=pa613922_aff__2a6ef9b9f3254f17ac7852bb2f9bc77a
http://www.superslots.com/?c=55130&s=1025
http://www.fortuneaffiliates.com/tagservlet/tagservlet?btag=ad_205183

I have also cashed out at many more, and have a lot of them on my computer.