My Favorite Hanna-Barbera Characters Was
Huckleberry Hound
Fred Flintstone
George Jetson
Quickdraw McG (not sure how spell that character name)
Scooby Doo
Yogi Bear

I had several favorite Hanna-Barbera cartoon characters.

In no particular order

Top Cat- I always liked Top cat and his gang. They always got into trouble with officer Dibble. Yet Dibble would rely on them to help him solve a case.

Yogi Bear- Yogi Bear was great he was funny and always getting into trouble with the Ranger.

Huckleberry Hound- Since I'm from the south and have a country accent. I liked his country accent he was pretty funny.

The Ant Hill Mob- They appeared in Wacky RAces. They were my favorite in the show. Their car was cool. They could use machine gun power to make their car faster. In addition, they could put their legs through the floor and get away this was called get away power. They usually finished in the top 3 of Wacky Races.

Dick Dastardly- Even though he was a bad guy he was funny. His cheating and trickery always backfired on him. Then to top it off Mutley his dog sidekick would always laugh at his misfortunes.

Honorable Mention- Quickdraw McGraw hitting a bad guy over the head with a guitar and yelling El Kabong is just funny.