I liked "Blind Date" a lot because I thought it was very well written - maybe one of the best written of all the episodes, internet or TV. I also liked Class Act for a lot of the same reasons.
I don't often favorite much, but Petunia is like, my favorite so most episodes that feature her, I liked Wishy Washy but Petunia's death seemed pretty gruesome @_@
She needs more episodes... Really, I think she got one TV episode if not two starring roles.
The TV episodes were good but I thought they lacked the cartoony charm the online episodes have, they seem less "bouncy".
Party Animals was probably my favourite episode, despite the presence of Flippy. It had everythng that makes an episode amusing. Creative deaths, minimal Lumpy content, Flaky... the list goes on.
Winging it was pretty good too.