Good question, Osuche. I can't name just one, so I'll list the top 6.

1) Alaska, inside passage and Kenai National Park. Unforgettable.
2) Walt Disney World, as a kid with my folks.
3) Walt Disney World, as a parent with my kids.
4) Breckenridge, CO...a week of skiing and torrid sex with Mrs. Rabbit.
5) Southern Caribbean cruise...a week of diving, eating, partying and more torrid sex with Mrs. Rabbit
6) Western Caribbean cruise...with my brother when we were both single. A continuous week of dancing, partying, boozing, and multiple sex partners.