Haven't seen any of these..but agree about OINTB..Piper is kinda dull. I think she was meant to be though. The creator said she wanted to tell the other's stories and Piper was the gateway drug to sell the networks, being white and young and pretty. So they could sneak in the bigger picture gradually.
But yeah, we got a lot of Piper and she's not my fave. Real Piper is a different thing. Ugh Piper's boyfriend was the worst.