Austin Tilly or Champ for a postwar surplus purchase?

Just after the war, would you buy an Austin Tilly or an Austin Champ from a surplus dealer, and why?

The Tilly appeals for its van layout and rear space; the Champ wins on power for climbing hills.

The Tilly attracts support for its small-van layout and the useful space at the back. Drachinifel also likes its appearance and carrying space, then chooses the Champ because he wants enough power to climb hills. The choice turns on the tradeoff between a vehicle's appealing layout and its practical performance on gradients.