Publishing an explicit "blacklist" of science magazin names may easily cause legal problems. So no way...Making statements about positive exceptions it always fine, of course.
I've been down that road before. Make certain that it is clear you are stating your opinion, and there is NO legal problem, at least in the U.S.
In general, magazins specializing on astronomy are less controversial than allround science magazins and notably magazins covering conceptionally difficult topics like news in or implications of particle physics, general relatiivity, balck holes, worm holes etc.
The times that Astronomy has addressed these rather heady issues, they've done a wonderful job at making the basics clear. And believe me, nothing will give me a headache faster than trying to understand relativity!
Certainly Sky&Telescope is another very positive exception. I actually have a subscription to S&T since 20 years or so. Like in case of 'Nature' , I know many professional astronomers who read S&T regularly.
It has been one of my favorites for years as well. When we move out of the colelge setting and I can actually afford a proper telescope, I plan to make that particular publication one of my mainstays!
[quoteAs to 'Scientific American' => no comments. [/quote]
But why? You can certainly write your opinion on this without fearing reprisals, legal or otherwise, presuming it is not done in a libellious manner. And I hardly think that you would stoop to making false, detrimental statements about something. So give it up, why don't you like it?
Altogether the least reliable are certainly science magazins on TV or even worse: Science sites on the WEB.
Well, I certainly agree here, although there are exceptions (spaceref.com, space.com, Bill Arnett's Nine Planets web site, for example). As far as TV goes, I concentrate mainly on paleontology shows, and am absolutely horrified at some of the things that make it to the show. Even little things, like one recent show remarking that Plesosaurs had gastropods in their stomaches to aid in ballast...! The correct answer is, of course, gastroliths. I tll ya, it makes me wanna pull my hair out!