Nice topic Chris. I usually spend my winter vacations around the region (Balkans). Bulgaria has some nice skiing centers and is a very convenient place for holidays of this season.
My favorite remains the summer ones though. Croatia, Montenegro and Greece are my favorite seaside countries, with Albania as a honorable mention. The Mediterranean climate makes it all worthier and the goof is also great.
Would love to visit Sevilla in the near future and spend some quality days there, hopefully sometime next year (summer-autumn). Also would be nice to meet someone from the forum in the city.