I liked last night MUCH better than the battle rounds. Very few of the battle rounds had songs that worked for one or both contestants. I'd rather see a competition in which each person gets to sing a song that suits them, and they can be judged individually.
Had to relisten to Kris Allen's "Heartless" performance, which I found on youtube. Dia's was pretty similar, and I really do like what she did. To me, she was the first person last night who was better than good or OK. She stood out. But Kris' version was a bit better, IMO. It was a little more lively. But they're still really close. So Dia's version is not as original as a lot of people seem to think.