Absolutely!
The last fantasy book I read was the Wheel of Time series. I hated that author's style of writing, but the plot line was enough to keep me reading. How he wrote was...like a third rate novelist. Things were too obvious, the characters were...obvious. They didn't really develop at all. They just remained the same and solved problems as themselves. And just how he wrote sentences was more annoying than pleasing. GoT does not annoy me like that. Plus it has a super-awesome plot line.
In GoT the characters definitely develop and change. Sansa is a great example. She wants to be a princess/queen but doesn't understand what exactly that means, but eventually she learns a ton about what the political and personal effects are. I'm trying not to give out spoilers and stuff so I'm trying not to say a whole lot, but...if you read all the books you will absolutely see character development. The difficulty of this book experience is that it requires a commitment to read all of them and not just one. If you finish book one it will not be hard to continue on to the rest. Hooray for addiction!
But as far as style goes...Each chapter is titled with a character and told from that character's perspective. It reminds me of Tom Clancy. One huge difference that I've noticed is that in a Tom Clancy novel you know who the good guy is and who is going to be there at the end of the novel. I like not knowing.
I'm a trekkie instead of a Star Wars fan because Star Wars is your basic archetypal good vs. evil = good guy wins as opposed to Star Trek where they face moral dilemmas. In the Game of Thrones books there aren't really good guys and bad guys. There are just characters with motivations. And GoTs does one better...you never know when the good guy will turn out to be a bad guy or when the bad you guy you like is going to die or vice versa or upside down or anything.