In my opinion #1 was the best (It was my first live action movie in theatres as a kid!)
But gosh, when I saw Dead Man's Chest opening day... I was so excited me and my Mom waited in line for god knows how long. When the Kraken ate Jack and when Barbossa walked down those stairs at the end of #2 Disney already had my money for seeing #3 in theatres :D

I thought that there were some very funny parts in this movie

i love dead mans chest just potc trashed the ending by destroying jack character
at worlds end was... well just boring not very amazing
cures of the pearl just awesome not as good as the second but better then potc 3