Do you do solo holidays, group holidays or holidays with just one other person?

I suppose this would be a question for different types of people. Me personally, I would prefer to go on a holiday with one other person, preferably a partner (if I had one). I would love to be able to share that happiness and adventure with just her and soak in all of the newness and beauty of the world with just her. I'd love to look over and see the smile on her face as I showed her something incredible. An image that always pains me is being in that exact same spot, turning to see her smile and seeing no one there. I personally am still yet to go on what I would call a Grand Holiday. Hopefully someday soon I shall accomplish it.
What about you guys? What sort of holidays do you enjoy?