You haven't mentioned 'Den Gamle By' museum. For those interested in Danish history and culture it is well worth a visit. Personally, I'm looking forward to an evening in Copenhagen and hope to have a chance to visit Tivoli. The train ride to Herning is also an attraction for me, I've driven all over Denmark and would like to see it with someone else doing the driving. There was also more choice of flights to Copenhagen especially from Gatwick which is the right side of London for me. Whichever, I'm sure we shall all have a great time