What is your favorite episode with only the Core Four and no Lost Girls?

Mine is Shoplifting. A very funny episode.

Mine Take My Finals, Please. So funny

Mine Take My Finals, Please. So funny

That one is in my Top 5.

My favourite episode with the 'Core of 4'? That's a very hard one, but if i had to choose one, it'll be 'Graduation' (from season 4) and for the following reason: it's the departure from the 2 eldest JO and BLAIR off to college and things will never be the same again between the '4 Musketeers' and their surrogate mother MRS G!
Or so everyone thought, and the final moment when our 'feisty red haired' gives her 2 eldest girls her gift is my favourite: a 'geode' for JO, and a jumper knitted by herself to BLAIR, with wise and loving words to both of them....

The New Girl (Part 1 & 2).

The New Girl (Part 1 & 2).

That would not qualify because it got a Lost Girl in it.

Okay, I'll go far away from season 2 and say, "Seven Little Indians."

I'm less of a fan of "The Four Musketeers" and "Graduation" because it feels as though those episodes should have had the Lost Girls in them, but had random girls instead. TFM is a funny episode, but can't be my favorite because of that.

Maybe "Take My Finals, Please"... I love the silly conversations and "AU!"