Best and worst film

Best - House of Usher
Worst - I couldn't tell you what his worst is

Favorite: Piranha (1977)

I would not know his worst.

The Trip? That's a wacky movie but it's one I've seen countless times. Enjoyable as a cult film and for its depiction of psychedelia at that time. Hardly one of Corman's worst. He came up with the concept of the film taking LSD up in beautiful Big Sur in California where he said he could see through the earth.

Are you talking producer or director?

Best directing - Masque of the Red Death

Worst directing - Target Harry

Best as producer - The Slumber Party Massacre or Piranha.

Worst - too many to count

Masque of the Red Death