As Wookster I have a Mojo and a 5 love them both, The Mojo is superb with up to date suspension tech ete etc etc, lightweight climbs well.
Then I get on the five and yes it's not as refined but there is just something about it. Feels like you can just do anything on it bombproof etc etc.
I am going to slim these two bikes down to one either change the spec on the Mojo or swap them both in and get the new 5 as per http://www.singletrackworld.com/2010/04/fresh-goods-51/
Thats how much I rate it just my two peneth !