If it looks like One Piece, feels like One Piece, smells like One Piece, sounds like One Piece, and has characters and a plot line like One Piece...
...it's Hiro Masashi's Fairy Tail. (It even makes use of of the word nakama!)
Haha, all that aside though, it's pretty nice. Just wish that Masashi guy could've made it a little more different, so as not to seem like a Magician-version of One Piece.
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WRITER'S BLOCK!
Hm. I don't really know if this is my most favorite one but when I read the question, the one thing that came to mind was the end of Notting Hill, where Julia Roberts, pregnant, was laying on Hugh Grant's lap while he was reading on a bench in a park. It was just so peaceful and happy, y'know? (That, and Julia Robert's foot was twisted beyond what I considered as humanly capable. O_O)
[EDIT] OH! And Thumbelina and Prince Cornelius' whole... Let Me Be Your Wings number. :D