I saw one concert during the first leg - in January, in Hannover. He was great that night - one of the best gigs I have seen from him. Maybe the best from the 21 times I have seen him.
When I saw him two weeks ago in Hamburg during the second leg of this tour, I think that he was not in such a good shape. For me it was a noticeable difference between the two legs. But since I saw only two concerts, I dont think it is fair to see a trend in that.
However - with regard to the thread title: I do not think it is possible to answer this question just from some youtube videos or from witnessing a couple of concerts. And I do not think that anyone of us has seen all concerts, too.
If you like to gather really great JLB concerts from this tour, add Hannover from the first leg.