I've only ever used Carefresh & Fresh 4 Life aspen shavings. Once, I had a SUPER dusty bag of Carefresh, like there was tons of dust in a corner of the bag, and me, back then, as I was a horrifying hamster owner, I used it anyways!
I've never had problems with Carefresh besides then. The aspen I really like, it's never been dusty, and not as sharp as what I've gathered other people's aspen is.