Kev, It is pointless to discuss the two; we will have to wait until the Llano chips come out later this year. AMD may have them running in a hotel room this week, though, like they did with Zacate, but we will have to wait until a third party looks at them. Remember though, that gamers will still need GPUs with Llano and Sandy. Neither is a great gaming chip by itself. Sandy's performance is incredible, its performance in laptops appears revolutionary--nothing like it has every been seen. It outperforms the Phenom 920 quad core by 300-400% on many benchmarks, all while delivering 50% better battery life. WS just hasn't figured it out yet.
Kev, One other point. A lot of the posts on these boards are just the posters opinions. Check this and my, Math doesn't add up thread for comments of reviewers. They are blown away--they just haven't ever seen anything like this before. Nothing close to it in performance and socket power.