According to Pew, MSNBC presents the least factual reporting of the big three. So MSNBC is the objective answer and as such it is not up for debate.The OP knows this which is why he left off MSNBC.
Early voting in Georgia. On the 20th of October this old Goldwater conservative voted against both Donald Trump and Hillary Clinton by casting my vote for Gary Johnson. Neither Trump or Clinton belong within a million miles of the Oval Office.
All of them are just as biased. News is no longer about informing the public, it's about projecting an agenda. I wouldn't trust any of those "news" sources at all.
I'd say that the Fox and MSNBC entertainment networks tie for the title, though I disagree with the "news network" descriptor in the OP. Both deliver confirmation bias in the form of selective coverage of current events with a specific flavor; geared towards either right or left leaning viewers.
You do not even dare to put in a questionnaire together FOX and MSNBС. Did the right thing. Can not be placed next to a beauty queen and ugly midget.