I had my 40K service today on my Euro and they gave me an 07 Accord VTi for the day so just I'd post my comparisons.

Most obvious thing was the performance. Both are 2.4's are I' sure you all know but the Euro's is heaps quicker. The redline in the VTi was only 6500 and had no vtec kick at all (does it even have vtec?). There's also no midrange surge at 3-4000 rpm.
Suspension wise it's a much softer ride. Handling isn't as good and it doesn't have traction control at all (no VSA). I'm not sure if it even has a rear antisway bar. It also seems to sit a little higher than the Euro.
Inside it's much the same except no audio control's on the steering wheel at all (there is the cruise control buttons though). This I thought was a huge downer on this car as it's an option even my wife's old '01 Barina had.
The size of the car seems a little bigger at the front and rear. The rear seat room is bigger than the Euro by at least 10cm's or so. It had no handle in the boot lid to close the boot so you have to grab the paint work all the time. A big bummer in my books as I'm in and out of my boot all day everyday.

Good to know the Euro is still the best of the Accords as I've now driven them all, Euro Std and Lux and Accord VTi('07) and V6('03). V6 was the best engine wise (obviously) but overall the Euro wins hands down.