If you want to have some control over your final destination, get everyone who's travelling with you to put a number of options into a hat and pick one. Ding! Instant surprise. It'll stop you looking for hotels in eight different countries, too. You can narrow it down to cities or locations in the same way.
Top tip: It might be a good idea to discuss some basics before you choose the destinations. Don't force your holiday pal to do something they don't want to. They will not suddenly enjoy a camping trip.