That is a REAL tough question.
When one is in the thick of things and knows more details and more accurately just what is going on, and then reads the various news reports that supposedly "tell the same" story, it's hard not to be disappointed with most news media. Many of them have notorious coverage, hiding important facts, distorting others or reversing the order of events so that what happens in response to something is presented as if it came first and was the initiator of a chain of events. Another way in which the media mis-report news is by hding some imortant details at the end of an article, after the headlines of the same article implied otherwise. The New York Times and the BBC are among the media that present the most (negatively regarding Israel) slanted coverage of our local news events.
Who is the most reliable, I can't really say. But there are internet sites that specifically deal with the misrepresentation of news about what goes on in Israel. One of them is CAMERA--the Committee for Accuracy on Middle East Reporting (CAMERA.org. Another is: WWW.HonestReporting.com.
I can only recommend that you look at either (or both) of these sites when "interesting" events are developing in the middle east. They will be able to fill you in with many of the "left out" or misrepresented aspects of the stories.
They should keep you busy, since there is always something interesting going on here.