We have a winner: Alabastero's falf-timbered house
Debra and I judged the entries independently but both came to the same conclusion.
Debra chose Alabastero's house because, as somebody who is not a wargamer but who is into faeries, dragons, and such, it has the most appeal to her and is the thing that she'd be most likely to have a go at herself (or more likely request for me to make for her).
I chose Alabastero's house because because of the use of the sculpting tool and hot knife to do things that most other tools can't do (the shaping of the roof and cutting the inset for the plastered part of the walls).
To be honest my choice would have taken precedence but it's nice that we both chose the same.
Not to forget the other two entries:
I have to say that I'm disappointed and more than a bit embarrassed that I have to go back to HWFF and tell them that we only got 3 entries. 200 USD worth of goodies and 4 months to build! What's wrong with you guys?
Anyway: loved the other two entries as well.
Asdel has got me wanting to try some of the HWFF consumables and I've been wanting to have a go at his hammered rock technique since he posted his mesas. Also loving the paint job on the water. It's got me wanting to go on holiday again. 
Last but not least: Minileed's cavern tiles... and that texturing roller!!! What a brilliant idea. Had the competition not been focused on HWFF tool that roller would probably have swung my decisions in Minileed's favour (y'all know how excited about techniques I haven't seen before). I also have a penchant for maze type terrain so it also appealed to me on that count too.
So, that's me finished blabbering. I'll PM Alabastero so I can get his details to pass on the HWFF. As for myself, I'm off to the pound shop to buy a cheap rolling pin. 
Edit: I forgot to mention: all three entries are excellent additions to the wiki with nothing really to choose between them in terms of presentation. So very well done to all three entrants on that score. 