I started right before Easter '14 and played so much I was getting on every few hours even while sleeping or working. It was awful. I missed so many prizes despite playing the event to the fullest extent a freemium player could play. Every event since has been better. Is this sports event my favorite? No. Is it the worst ever? Not by a long shot. It's been one of the easiest to understand and play right away. The prizes are mediocre right now for freemium players, but they may get better as the event progresses. I haven't looked ahead so I don't know, but generally as the event progresses so do the prizes. Finally, this event doesn't require hoarding resources or losing sleep to play every few hours just to complete it.
While it's not my favorite so far, it's far from the worst event ever.