I always liked iCarly,as Box Incorporated said it's like a "guilty pleasure" I enjoy it even if I hate Miranda Crossgrove (I wrote it wrong,I know) and her singing voice,but everyone else is funnier than her so...yeah it's decent.
And Victorious isn't that bad but has a terrible writting,especially because they doesn't know how to end stories, but some jokes are funny ("Grandma! They cancelled the internet!" ) also I find Rex as an interesting character.
I haven't seen Sam and Cat,I mean Sam is pretty cool, I don't think that she can carry a whole show and about Cat,what a crybaby I never liked her.
Anyway, come on! comparated with Drake & Josh, these shows are crap.