Samsung Series 7 Ultra vs Lenovo Yoga 13

I need to buy a windows 8 touchscreen laptop and I'm finding it hard to choose between these two. I'm not sure I will use the various modes of the Yoga 13 but I guess it is nice to have.

What is important to me is a great screen (advantage series 7 ultra), good battery life and comfortable keyboard. Price range is $1000.

Which one would you choose? Are there any other good options?