On a side note, you can't compare ratings for DS9 to ratings of Voyager. DS9 like TNG was shown in syndication. Syndicated shows are rated on a different scale and aren't tabulated in with Neilson ratings. Voyager was on a major network who's rating are tabulated and equal to other major networks like ABC, NBC & FOX. Which also means Voyager wasn't in competition with DS9 but rather ALL the other shows on the other major networks. In other words, Voyager had to worry about holding it's own against shows like Law & Order not against other Trek.
The ratings can be directly compared though, syndicated shows also get "nielsen ratings" just like network shows. The only difference is with audience share. Audience share can be calculated for a show like Voyager because it was always on at a set time in nearly all markets which wasn't true for DS9.
And regarding what's better syndication vs network. At least Voyager had a stable timeslot and people always knew what time it would air, DS9 was left to the whim of the affiliates and shuffled around different timeslots like crazy ranging from 7pm sometimes to 3am others. So I'd hardly say DS9 really had it any easier, yet it still outdid Voyager even during Voyager's most hyped seasons - 1 and 4.
Ds9 also doesn't have a stronger rep. in the media either. The media is controlled by the studios. Paramount always put Voyager before DS9.
I don't really know what your interpretation of "media" is here. I simply mean that DS9 still gets a lot more praise in the media/among critics than Voyager - then and now.