You probably remember how addictive was rating girls on HotOrNot.com a while back. A recently launched NYC Jelly project compares website design by showing you a screen capture of two homepages at a time, and lets you pick the winner. It is the ultimate HotOrNot for geeks and it is called CommandShift3.
Besides being utterly addictive, it is a great way to check out the current Web2.0 trends. At this moment in time, these are the best and worst designed websites: