Well, I kow that I'm a bit late to this topic, but I'd like to give my opinion anyways.
I thought Starfox Adventures was a great game. I liked the storyline(of course I played it only like 2 or 3 years ago.....but I still remember it), and the challenges. It's the only Starfox game I've ever played though, so I geuss I'll have to look for Starfox Assault and see what it's like.