I'm still working on a roll of Warm Company's 50/50 which was discontinued years ago...I also love Warm Company's Soft & Bright poly batting, it's works up really well, dries quickly in the dryer, my next roll of batting will be Quilter's Dream Green though, I tried a crib size of that batting and WOW it's so soft and washed up so nicely!
If you go to the websites of various batting companies you can sign up to get a card with a sample of all their battings on it, I have one for Warm Company, Quilter's Dream and Hobbs (although I'm not a Hobbs fan)