Recommend an Ultrabook

No matter how hard I try I can't actually get anything done on a tablet, so it's time I replace my ultrabook. For the past few years I've been using a Toshiba first generation Ultrabook with an v1 i3 CPU. The things I like about it are:

1. Backlit keyboard
2. Very Light and small package
3. Real mouse buttons below the touchpad

What I must have in the next one are:

1. Higher resolution screen vs my current 1368x720
2. Backlit keyboard
3. Light, durable
4. Good battery life
5. i5 or better

Any recommendations / personal experience?