It just seems that way because in every episode it was Vanessa's fault or "What were you thinking Vanessa?". Does anybody agree? Some episodes I can think of is when Rudy and Vanessa fight and they just yell at Vanessa or when Vanessa says something stupid- this seems to happen alot.

Theo always seemed to get yelled at more...but I may be wrong. He did do a lot of stupid things, though.

Vanessa was only funny in the pilot, then they took her in a differnet direction and somewhere along the line made her completely unfunny.

She's not so bad in the first few seasons, but as an older teenager -- she's terrible.
My least favorite Cosby kid by far (least favorite TRUE Cosby kid, none of this Pam/Olivia bull)