You're playing with fire on this one.
I'm taking the fifth (which I carefully packed in my checked luggage and hope isn't confiscated).
That said, I think our ultimate cruise experience (so far) was Song of Flower to Viet Nam with three pre-cruise days in Singapore and three post-cruise days in Hong Kong.
Second in line is Marco Polo to New Zealand and Australia with pre- and post-cruise days in Auckland and Sydney..
Then I'll go with Rottie VI trans-Atlantic calling in at the Azores, Portugal, Ibiza, Malaga, and ending up in Barcelona for some post-cruise time. Do you sense a "portie" trend here?
Different people want different things from their cruise vacations. Some just want to experience a ship. Others want the ship to take them somewhere they want to go to see things they want to see.
That's why I'm taking the fifth.