Also the Blakes and the Winchesters.

The Mikaelsons were the best part of TVD. The quality of that show has gone so far down without them. Originals TV series is better than current TVD seasons, but nothing beats them being on TVD and in Mystic Falls.
Chose these guys because I LOVE Klaus (one of my fave TV characters ever), Rebekah, Elijah, and Kol so very much :) The original story is fun and interesting. Now if only Julie Plec would get fired or something and some smart writer would set things back to right...

After them-
Winchesters
Summers
Swan-Mills
Matthews

The rest (that I know)...for the Blakes I love Octavia but find Bellamy to be a bit meh. Salvatores, I love Stefan but not a big fan of Damon.
Ugh, the Gilberts. I find them both dull (especially Elena) and Elena is irritating. Glad she's gone (for now).

My babies. <3

Winchesters.
Mikaelsons.
Salvatores.
Blakes.
Matthews.
Gilberts.
Swan-Mills.
Tanners.

I was gonna comment about one other family, but they just keep comin'. Here, have 5:
The Donnellys from The Black Donnellys
The Conners from Roseanne
The Greens from Jericho
The Finnertys from Grounded for Life
The Gallaghers from Shameless

And the Swan-Mills family.

love them,then the simpsons, some is not on this list

Also the Blakes.