Comparative research tool

Jux2 will give Internet searchers a choice of four different major search algorithms
(Ask Jeeves, Google, MSN, and Yahoo).

It also made us wonder:
How different are the search engines, and is one any better than the others?

NB:
TheBIG4 typically sharing fewer than 3.5
of their top 10 results.
  
http://www.jux2.com/

Ps: PL
Nice image quiz update :O)

Personally I find Yahoo is getting much better, and closer to the Google results. For many terms I've tried, their first hit is the same as Google's, and the best one.