1) Tom and Jerry : I guess it was very obvious that my most favourite cartoon would be Tom and Jerry. I mean who doesn't like that cartoon?! If the scene of a cat running behind a mice for an entire half an hour can make you laugh beyond you ever imagined, then why not? I truly adore watching both of them fight, and Jerry getting Tom into trouble when the lady comes or when the dog is around. Infact, there has also been moments where people say that they would do something when Tom catches Jerry. Or when the face of the lady in the cartoon is shown. Lovely funny cartoon I must say.
2) Powerpuff Girls : Girl power personified!! Who would have imagined three girls would rescue the entire world from any evil. Well, yes, it is just a cartoon. But who knows when the concept of this cartoon becomes a reality. A bang on a man's face :P.
3) Flintstones : Fred and Wilma, you made me laugh till my stomach pained during my younger days! The way he runs the car by literally running is truly hilarious. The cartoon also depicts the friendship between Fred and George. I truly loved Flintstones. Infact I still do!
P.S : Others that made it close are:
Dexter's Laboratory, Jetsons, Mickey Mouse, Looney Tunes, Popeye, Scooby Doo..... Phew now this was tough!!