All depends on your cable/satellite provider... and how much it decides to compress each channel.
Nobody will have the same answer.... since its very unlikely that 2 people on different systems are seeing the exact same image.
As far as the network goes, it is YESHD hands down. Providers may degrade picture quality but as far as the channel itself, it is YES. SNY is also very good, but they only pretty much do Mets home games in HD, together with HDNET they are second and CBS third as far as picture quality for sports. NESN is also very good and I would put them as fourth.
I think NESN HD has the best picture on either Comcast or Fios since they are uncompressed. And Ive seen both in side by side with YesHD through the former INHD1.
There's no such thing as uncompressed. All HD is compressed. They can only pass signal without any recompressing. If you saw YES on INHD1 then it might have been recompressed. This year YESHD has its own channel, like NESN.
Outside of the macro-blocking fast motion graphics of NESN, the picture quality is outstanding and the best I've seen when comparing ESPN, FOX and inHD games.
Macro-blocking on NESN appears to be coming form them. It is seen on all providers that have it. D*, Comcast and Cox. Looking at their C-band transponder with symbol rate of 29270 which translates to 21952Mbps usable data rate is way too low. NESN HD shares it with 5 SD channels. At the best case scenario NESN HD gets 12 Mbps. That is not acceptable data rate for 1080i signal, especially sports. I agree that NESN is much better than ESPN or FOX, but YES is even better and no macroblocking on fast motion graphics.
Phillies home games on CSNHD look really really good, since they have a direct connection to the CSN studio, and everything is transmitted by cable in the area(I think). 5.1 sounds great too, you can always hear the crowd from the rear speakers, and occasionally a fan yelling something.
Of course unless you live in Philly and have Commycast, you wouldn't know this
My vote goes to SportsTime Ohio in 1080i. (Indians games)
I also nominate STO Indians home games in HD. Spectacular 1080i. I watch via Wide Open West cable Cleveland, which as far as I can tell does not rate shape the STO signal. STO is one of a very few HD channels that look great on my Panny 50PF 1080p plasma.
STO makes the 720p presentations from Fox, FSN Ohio, ESPN and ABC look like SD. It also beats the local NBC and CBS 1080i multicasters.
i don't know how we can ever really compare, given that most MLB HD games run thru RSNs so I have no idea what CSN philly looks like because i'm here in the west coast. given that, FSNBA has at&t park. beat that.