Given that I live in an apartment as large as someone's chicken coop (yeh, that was what I was told ), many of the plants at my balcony ain't as large as they should be. Despite that, many of them have got good leaf : pitcher ratio. Most of the time, the pitcher is more than half the length of the leaf. Otherwise, the plants have got multiple basal/lateral shoots.
The measurements taken were of the leaf with the newest fully developed pitcher (lid excluded).
N. albomarginata (green) - 5" leaf : 2.5" pitcher
N. khasiana - 2" leaf : 3" pitcher
N. mirabilis - 5" leaf : 2.5" pitcher
N. hookeriana - 3" leaf : 2.5" pitcher
N. reinwardtiana - 2.5" leaf : 2" pitcher
N. maxima x ventricosa - 4" leaf : 2.5" pitcher
N. kuchingensis (BE) - 3.5" leaf : 2.5" pitcher