Yeah, the Brits will feel right at home in Seattle, at least as far as the weather goes.
I'm debating between Kansas City, Dallas, and Atlanta. I live in a smallish city and our airport only flies direct to like 10 cities, two of which are Dallas and Atlanta. Never been to Dallas. Atlanta is cool but the traffic is some of the worst in the country.
Kansas City will probably be the least chaotic of any of our host cities, but for me it means driving to O'Hare first. Of course, it'd be cool to go to a Royals game while I'm there.