Do you plan to machine quilt or hand quilt?
I'm big stitch quilting for the first time ever and using Fairfield's Nature-Fil 50/50 cotton/bamboo because an article I read on hand quilting recommended bamboo for ease of quilting. It's been terrible not because of the resistance (it's actually not as hard as I imagined to rock the needle, but I've never hand quilted before) but because of the bearding. I'm using a 12wt Valdani perle cotton, and even with some Thread Heaven, it's still bearding quite a bit. I'm pretty bummed about it, but pushing through.
I've machine quilted with it though and had no issues using 30 and 50wt threads. It has beautiful drape, and the batting itself is super soft which I love.
I haven't tried Pellon's blend since I have the Nature-Fil, so unfortunately can't give advice on that, sorry!