I”m going to go out on a limb and say that this is my favorite scene of the entire show. Gavin’s back is against the wall. He’s promoted Big Head up to these levels and now he’s finally seeing the fruits of his labor pay off.

https://www.youtube.com/watch?v=jroQCyWwEgE

My order would probably be (worst to first):

Monica – Goo
Gilfoyle – Agreed it’s a bit overdone
Dinesh – Agree with your assessment
Richard – Vital, but usually doesn’t tickle my funny bone
Big Head – Very good but too small doses
Jian Yang – See above
Russ – How can you leave him out!?!
Gavin – Has some fantastic lines
Erlich – Sometimes his antics are a bit overboard, but a must
Jared – His affection for Richard that you mentioned is hilarious. I don’t know why, but removing him would ruin the show for me.