My wife is a big fan of Bradbury. I'm less of one. I think he had a few interesting ideas but mostly he lyrically describes boring things that don't matter. He was never an ideas guy, and ideas are the core of sci fi.
I fucking hate Margaret Atwood. The core of every Margaret Atwood story is "selfless woman betrays her values when she foolishly falls in love with an idiot man who is evil."