Poll: What's your favourite major expansion?

[SettlersOfMon]

I voted T&B although it was a close fight between that and WoF. We just love the second go element the builder gives. Its one the younger players enjoy too, as it is so straightforward, and easy to remember.

[CKorfmann]

I think the thing that makes me vote for T&B over I&C is the Pig and the Builder.  I use them constantly.  IMHO though, I&C shouldn't even be an expansion.  It should have been included in the base game long ago.