I liked the song last night, and I thought Toby was a real good choice to sing that song. There were some parts that were less singing as talking on beat (not quite rapping though.) It was much better then the song last week. I also was not impressed with Dilana as much as quite a few people were.Others have stated that this band should (hopefully) get better each week, as they get more comfortable and bring out their better matterial.
As far as the House Band being better then SN: I felt that the House Band was better then INXS last year too. However, INXS had nothing to prove as they had/have an extensive back catalog to draw from. If they were a little off from sitting on their butts for a while, then it isn't any big deal.
Supernova does not get the luxury of established credibility as a band, except from the past individual efforts of the members. So I have tried be a little more leinient in my criticism of the things we hear from them, becuase I am confident that when they get in the studio, they can tweak the song and lyrics with/for the singer they choose.