My two friends and I are planning a trip to Europe but due to work we only have 2.5 weeks to spend. After discussion we have narrowed our trip to two options. I would like to know if either of these are possible and if so is it a good way to use the 2.5 weeks that we have? If not, what would you recommend to get the most out of the time that we have. We're young and willing to rough it. We generally like to push and get as much in as possible (we're not going for a super relaxing vacation) but we also want to be realistic. Please let me know what your thoughts are.

Option 1: Focus on Spain, French Riviera, Italy, then hop to Greece for a couple days. More specifically fly into Madrid, spend a day or so there, head to Barcelona, spend a day or two then make our way to the French Riviera (we don't care much about this, one stop would be great),possibly stop in Monaco then head to Italy. We would love to do the italian riviera, Florence and Venice (that's all that we really care to do it Italy). Then fly to Greece and spend a couple of days (we were told Greece is overrated so 1-2 days max is great). Does this trip sound doable? If so, do you think it's a good way to spend the 2.5 weeks that we have? If not what would you recommend?

Option 2: Focus on Spain, France, Germany, Switzerland, and Italy. I'm not quite sure how we'd go about it but these are the specific sites we'd like to see: Madrid & Barcelona in Spain, Either Paris or French Riviera in France (I know it's probably not possible to do both), Neuschwanstein in Germany, The alps in Switzerland, then Florence, Venice, Riviera in Italy. Is this possible? and if so is this a better way to spend the 2.5 weeks. Any help would be much appreciated and sorry for the long post