I could go either way for this. Taller women are usually more able to carry you and more stable, however with shorter girls there is more of a domination aspect. This could change with different builds as well.

I would prefer taller and bigger

Into the unexpected, so shorter and lighter.

I'm quite tall by myself so it's hard to find a girl who'd taller and bigger. I prefer tall girls over 175 cm and she shouldn't be skinny.

I am 4'2 (127cm) and 70 lbs (31kg). Most women are much taller than me...lol

Taller
 

Taller are better
But i meat many shorter fbb that did
very good

I think both options have their own taste. Sounds like a blonde or brunette question to me. But I have always liked girls who are shorter than me in this regard. I've always been more satisfied with people who don't seem to have enough physical strength to carry me, but who surprisingly succeed in doing so.

I prefer shorter and feminine girls because as other posters have stated, it's the surprise factor when this petite girl is able to carry people heavier themselves. I'm not a big dude only being 162 pounds but many women have given me piggyback rides.

The taller, the better

Definitely taller. It has a more dominant aspect to it that way.