Complete analysis paralysis picking first Europe vacation!

My significant other and I are planning to travel to Europe for 10 days. Neither of us have been before and I have narrowed our options down to a few different trips but over the course of researching have made it much more difficult to decide where to go, rather than easier.

We are looking for an area that has a great food/wine and or cocktail scene, hiking, swimming in the form of lakes or beaches. Good architecture to explore is a plus but not as much of a necessity.

Currently I have narrowed our choices down to

• Andalusia area of Spain, going to Seville, Grenada, and a beach town such as Marbella or Málaga.
• Salzburg and surrounding area with 2 of the 3 Prague, Vienna, or Budapest.
• Portugal from Lisbon to Porto.
• Slovenia with possibly going south to a beach in Croatia.

Unfortunately the more I try to decide on any of these areas the harder the decision is be coming, any insight or tips from anybody would be greatly appreciated!