There are so many 10 day combinations with 3 shows included you can make, I guess it all comes down to what cities/countries seem to be more appealing to you. If there weren't any Bon Jovi shows involved, where would you like to spend your holidays at?

Unfortunately I can't tell you much about Austrian, Swiss or Belgian crowds, so maybe someone else can help you on that. I can tell you from experience Spanish and Portuguese crowds are very similar. Very lively and gig atmosphere is excellent. Being the last shows of the tour, they'll most likely be fabulous shows as well. All countries you've considered have strong points from a touristic point of view, so good luck with that

If you have any questions regarding Portugal and Spain, feel free to ask.