GBP/Showtime. No doubt. The hottest divisions (140 and 147) are in their hands. All HBO have are Ward -- who's far too inactive and is struggling for decent opposition -- and an Adrien Broner who'll likely jump ship to Showtime, anyway.
GBP should really really keep a strong presense at HBO. You don't just give boxings leading network to your main rival. Mayweather on Showtime, Canelo and Broner on HBO. Hope GBP does more HBO shows in 2013 As for whos winning between GBP and Top Rank, its GBP for me.
Canelo vs. Trout and the Mayweather PPV event eclipse what HBO is offering. I love Rios/Alvarado II, but that's their lone entrant.