5 every time.
I’ve got a 2007 5 and a 2010 Alpine. 5 climbs better and is a fair bit lighter but the Alpine can’t half descend.
Best of all, they’re BRITISH, well engineered, durable paint finish, simple suspension setup that WORKS and doesn’t need bearing changes every 6 weeks (I change my 5 bearings about every 12 months and its an easy and cheap job every time. If there’s any play on the rear and its not the swingarm bearings its the shock bushes – good luck finding the source of play on a Spicy)
My 5 just doesn’t break – its had a right hammering over the last few years, week in Alps, numerous enduros, drops, jumps and it just keeps going when others around me are having problems.
The only thing I don’t like about the 5 is the through swingarm routing of the rear brake hose. Clatters around a bit inside the swingarm on rocky descents, the Alpine is much quieter but its a small price to pay.
I’m considering a new frame myself and if I do get one it’ll be a 2012 5.