Your Favorite and least Favorite Dr Who Companions and why ?

[paranoid marvin]

Surely the primitive Leela is a great.

Leela and Jo (Grant) are arguably the two best companions.

 

[CupofJoe]

Favourite: Ace - as been previously reported, Daleks and a Baseball Bat...
Least: Almost any of the new-Who companions [with the exception of Rose and Donna]. The rest have been so meh. Rose and Dona at least had a bit of fight about them.

 

[BAYLOR]

Leela and Jo (Grant) are arguably the two best companions.

As a Who Companion Leela was two things , A heart attack and a wildcard. You never quite knew what she would do in a given situation, she's unpredictable, courageous, sometimes took the initiative and wouldn't back down from a dangerous situation . This is what made her a terrific and interesting Who companion . Jo Grant was likable , empathetic and sometimes could be more perceptive of things than the Doctor.