I think Brian has got stronger and stronger over the past few weeks. In the first week he didn't seem as confident as the other three presenters and I was unsure about him. It was obviously 'first night' nerves though he now seems very relaxed and a natural in his presenting role.
As I'm sure you all know, I'm a HUGE Helen and Paul fan, but I always liked Brian too and think he has a natural wit and the right personality to go far.
I hope he continues to host the show for a long time to come and only leaves to go onto greater things.