Joseph Barbera and William Hanna were animation folks for MGM and made Tom and Jerry.
They moved on and formed their own animation studio after MGM shut theirs down.
Then the went on to make the Flintstones, Huckleberry hound, the Jetsons, etc.
The best animation has the voice of Mel Blanc, and of his work, my preference is Foghorn Leghorn.
Followed closely by Sylvester, then comes Bugs, Daffy, and Yosemite Sam.