It's Will's best number! Not only is he incredibly sexy while performing (I don't blame Emma for nearly drooling) his vocals are awesome! His voice is just addicting during the number. Performance wise, IML/Conf. comes next, then Halo/WOS, followed by Hair/CIL. Sing wise, next would Hair/CIL then Halo/WOS, followed by IML/Conf. I love every single one though!

It was AMAZINGG <3

Loved hearing some Police too, but Artie's solo in Confessions is one of my favorite moments of the entire show.

i fking loved this!!

I LOVED Mr. Schue's performance as well, but this performance kinda topped my charts by a little bit!!!

DSSCTM/Young Girl was awesome, but I think this one is still my favorite song. =)

&& Halo/Walking on Sunshine. :)

I love them all except for Hair. That just annoyed me.

I agree with EverybodyLies. Hair was annoying. The parts of Hair that were sung didn't even sound like it. The rest were great though. (I honestly may have only chose the one I did because I'm a sucker for Matt Morrison's singing... I'm still hoping he gets to do stuff like he did in South Pacific or Light in the Piazza... heck even the Opposite of Sex the musical. I love his soft, pretty stuff.)

I really love them all, but this one has the most plays on my itunes so ;)

Hair was bad.

this one was awesome. loved artie's part in it.
but i didn't like hair that much.

This was so hard!! I also love the boys vs girls mash ups, they are some of my very favorite glee songs. But lately I have just fallen in love with this song, his voice is perfect. :]

Because they finally found a song for Mr Schue that didn't make me die inside! haha I think that the two songs were great but they mashed so well together. Halo/WOS is my second favourite but I agree with EL, hair is annoying.

Because I'm a big police fan and I had just finished doing a musical at school that had "young girl" in it.

That was so good when they started the confessions thing I LOVED it

One of the best glee songs in my opinion. definately my fave. :D

VERY close second to IML/Confessions :)

They owned it.