I know I am not alone in loving this show. However I will admit that 75% of my love is really for Donnie Wahlberg versus the show itself. The casting is stellar though. I would love more overarcing story than just one crime case a week though.
Anyway...I am rooting for Donnie's new partner to be Jennifer Esposito. He's had three at least by now, and it's only been 4 eps. She was, in my opinion, the best fit for him in terms of chemistry. Though I can see that leading to an issue with his wife down the line.