I've clocked 31 hours into Skyrim and beat the main story at about 23 hours. I have to say this is easily in my top 5 games of all time (only behind HL2 and its episodes). i'm playing at the lowest graphics settings possible and i get around 20-30 fps constantly with stuttering into the single digits for several seconds every minute or so. This is better than I expected from my laptop, so i'm happy with it.
The story is excellent, I could actually understand what was happening which is rare for most video games that i play. The UI is pretty good except for when i read books because when i get out of reading one my mouse stops working on the UI and i have to either exit or use the arrow keys, but this may be fixed in a patch in the future. The voice acting is excellent.
I haven't felt this thrill of discovery since I played Pokemon Ruby, and thats saying something because I love that game.
If you were only considering it, stop considering and just get it. It doesn't really matter which platform you get it on, but if you have a powerful PC then get it for that because it will have lots of mod support in the future.
9.7/10 I'm only rating it down because.....never mind 10/10. Only the perfection that is Half Life 2 can beat the fun factor of Skyrim.
I'm too distracted by sidequests and joining guilds. I am 43 hours in and not even half way done with the main quest.