What's the best Animes/Cartoons of all time and why?

/co/ & /a/ Thread?
/co/ & /a/ Thread!

Note that these are those that I have watched, some may not be in there because they never/haven't aired them here in Mexico. Also, it is why [SIZE="7"]I[/SIZE] think these are great.

 Spoiler

The simpsons (This doesn't really need an explanation)
MyLittlePonyFriendshipIsMagic(It's much better than what it may seem at first glance, it feels a lot like a good old school cartoon wich makes it even better)
Dexter's lab. (As a little kid I was such a wannabe scientist this show was like heaven for me)
Hey Arnold. (I loved this back then, and watching it now I really apreciate it much more, the morals are quite good for every episode.)
Angry beavers. (It reminds me of my sister and me fighting)
Flap Jack. (Seeing such a great cartoon these days is just astounding, however I am not a big fan of Chowder as most people are.)
Soul Eater(There was nothing wrong with that show... Except for...

 Spoiler

Courage punch!