The dilemma

For our upcoming Amsterdam trip, we're considering a day-trip into Belgium. Why? Because it's there, it's close, and we'll have a week. So might as well add another country to the list, right? :)

We're having a dilemma. Where in Belgium do we go? I've been told that Bruges is gorgeous, however, it's at least a 4-hour train ride away, and that's if we hit all of our train connections. So I think that's a little much for a one-day trip.

That leaves us with Brussels and Antwerp. Brussels has a little more to see, I think, but Antwerp is closer.

What to do, what to do? :) If anyone has any suggestions, I'm up for hearing them.