I'll be the first to come down on the other side. After seeing and driving the Ocean Blue EU Fiesta last May, I was completely convinced it would be my next car. Critical analysis of the Fiesta at NAIAS just feet away from the 2012 Focus led me to realize the Focus is the better choice for me at the point I'll be when I'm actually buying the car next Spring. I did a pretty thorough personal comparison (
Link).
Something about the new Focus really catches my eye and keeps drawing me to it. The front end of the car is almost perfect. I initially thought the headlights were much less dramatic and unique than the dragon's eyes of the Fiesta but the more angles and pictures I've seen as well as the chance to see it in person have brought out the well crafted execution of the Focus' details.
Really, the Fiesta is just too small for what I expect my family to be like during the time period I plan to own my next car. The Focus has more space, some cool interior features, and somehow has a face I like even more than the US Fiesta.
None of this is to say I'm unhappy with the Fiesta. I cannot wait to test drive one; if things work out, I may even do a long term rental should some find their way onto rental lots. I eagerly await reading of your Fiesta experiences!