I actually think this series is quite exciting in a lot of ways.
Last year, the winner was a foregone conclusion. Everyone knew Brian was going to win from quite early on in the show. This year it is much more open and so it's fun to watch.
Also the nominations have been less easy to predict, whereas last year we pretty much knew it would be Paul + whoever was next on Dean's line of people he didn't "connect" with as much! I think this makes BB3 exciting to watch as well.
The boring bits to watch have been the days when we would have expected them to have a weekly task, which would have made the Sun / Weds / Thurs of the week more interesting too!
In my opinion, each series of BB so far has had its own different aspects to make it interesting......!