London, Lund, or Budapest?

Wow. I've been in Europe for 2.5 weeks now - packing up all my stuff in Malmö, which is almost complete. I've had some awesome times... Stockholm, Copenhagen, Berlin the stories and pictures are yet to come. But I sit here now debating... where should I spend my last 4 days? It all depends on how quickly I can finish up these boxes and get them to the post office. Hurry up, Shobs!