Friday, too... always nicer to not worry about gettin' up for work the next day. my guess is that the friday show will sell out before the thursday.
opinion: there is one slight advantage to the thursday show - it'll be their first after a break, so everyone will be fresh, voices rested, etc (maybe i'm wrong here?). on the other hand, if there are to be any technical hiccups, one one think they'd happen on the first night and they'd be ironed out on the second.