Even DS9 would have been better in series 6 and 7 if they had cut out the stupid holodeck filler crap and SOME of the stand alones and just done 12 1 hour episodes on the war useing the money saved to make them even better
Except, I loved "Take Me Out To The Holosuite" - one of my favourite episodes of DS9. I'm an "entire franchise fan", so don't misinterpret this as dislike here, but DS9 is certainly my least favoured flavour of Trek. Why? Frankly, I found "the war" just a little tiresome. For me, it dragged on and on and on - waaay overused. I wasn't that fond of the quasi-religious overtones that permeated the series either.
Back on topic. At this point, I'd take new TV Trek at whatever season length - I'm just starved of new epsiodes! As others have stated, a shorter run is no guarantee of quality.