Day 1: Character that you would liked to have seen less of?
Honestly? Cordelia. If they had killed her off (written her off the show) instead of the whole Beastmaster/birthing Jasmine deal, then at least they wouldn't have destroyed her character. And they could always have found a way to bring her back for S5, but even if they didn't, I'd be okay with it. Anything's better than what we got of her in S4; I literally can't think of a single moment/scene in all of S4 that I can't live without, regardless of how amusing her turn in Spin the Bottle may have been.
Day 2: Favorite group scene?
Just off the top of my head, I'm gonna go with Are You Now or Have You Ever Been:
WES: "The Orb of Ramjarin."
GUNN: "How about a please?"
WES: "Please. And be careful. Conjuring orbs are very fragile."
GUNN THROWS IT TO WES.
ANGEL: "Guys, don't listen to it, alright? Whatever it's whispering to you, just ignore it."
CORDELIA: "They were like this all the way over here in the car."
I love a lot of their group scenes. They have their bad moments, but most of their group scenes really highlight how close they all are.
I guess my favorite is the one that stands out the most for me. The scene in Unleashed where they are all in Angel's apartment at W&H. Fred is ordering Chinese food, the music is perfect, and they all just seem so happy and close in that moment.