No question in my mind I'd pick the Leigh if I were you. I returned two brand new whiskey full-sized Alis after reading on this forum about issues with the leather strap that connects the handle to the bag wearing out prematurely. See
Leather Splitting?
Did you know the Leigh is not made that way? It's handle has metal rings connected through the bag through metal grommets. That won't wear out because it's metal against metal!
Besides, I love the feminine look of the Leigh much better than the tom-boyish Ali IMO.