...the Top 10 Funniest Games of All Time! And here's a quote from the list:
http://www.gamefaqs.com/features/top10/2367.html#2: Monkey Island Series (PC)
The Monkey Island series follow the adventures of Guybrush Threepwood who at first wants to become a mighty pirate. The first game is pretty much you trying to become a pirate and then you run into the ghost pirate LeChuck who wants to kill you. LeChuck is the key villain in the games and it's another one of those games where the situations and puzzles are so goofy they are at times laugh out loud funny. One thing that is also great is when the games made the translation into 3D they did so perfectly and when they added voice instead of straight text they got great actors to play all the characters and have done the smart thing and not changed up who plays them from game to game. If you downloaded the newest games that were just released you get the same actor playing Guybrush as when the games first added voice. It is also a lot of fun to see the recurring characters such as Stan who starts off selling discount coffins and later on you run into him selling insurance. LucasArts also loved to throw in Star Wars references and they are done in a subtle enough way that they don't detract too much from the pirate setting. If you haven't played these games you should check out the newest ones that just came out or check out the Special Edition of Monkey Island 2 that was released on Xbox 360 and PS3.