Anyone have any suggestions on shows to see at Lollapalooza this year?

I've got my own shows in mind (but unfortunately they scheduled a lot of bands I like in overlapping time slots). I'm looking for any suggestions on who gives the best live shows. I'm familiar with most of the bands on the list's music but I don't know who are going to show up and put on a kick-ass live performance.
I went a few years ago and still regret missing the Matt & Kim show--their music's alright but I had no idea it was going to be such a great set...hearing stories from others and seeing recordings of the show make me sad. Even if I like another band's music better, I'd rather see a high energy live show from someone else than some good songs played without emotion.