The best show, I watched every episode like a million times each... my companion every afternoon. I love it.
It's not just that I always wanted to be one of them and develope super human powers with the arrive of my puberty, but the show was all-action, yet suitable for my age. It was my only source of the story since comics aret'n sold here (at least not earlier, now you just can find a few of them and not translated)
Counting the adventures of the amazing X's and the battles against the equally super powered villains, this is one of the greatest animated shows ever.