I absolutely loved Dragon Age on the consoles. It's one of my favorite games of this generation.
That said, the PC version is noticeably superior. You can play much more tactically and the modding community is great.
If you haven't played Dragon Age, I'd actually recommend the PC version over the console (although you can't go wrong with either, really). If you've already played it on the consoles and loved it I still recommend it on the PC for mods alone.