Do you think Sisko was badly written. Ok tell me why and cite examples from episodes.
Quick answer to this one - no. I loved the Sisko character, and I've never really understood the criticism that the character and Brooks get. He's often cited as wooden, or the character is written wooden, but I never had a problem with that at all.
In addition, I always thought the relationship between Sisko and Jake was probably one of the most genuine in any of the Trek shows.
Did DS9 have its flaws, of course it did, largely for the reasons you cite, ie. no television show is without fault, and equally very few shows are without merit.
Voyager's positives - great premise, and a superbly written and played character in the EMH.
Personally, my main complaints around Voyager are the multitude of missed opportunities - premise, the year of hell debacle, the quick resolution to the Starfleet/Maquis crews coming together, the balls'd up Borg/Species 8472 story, the absolute shambles of a final episode.
DS9's primary strength lies in its rich cast of characters, and the numerous story threads that all hung together extremely well. Voyager's dynamics never really worked at all. Worse still, one that could have worked, akin to how the Bashir/O'Brien one worked out for DS9, was Paris/Kim, but sadly they went down the misguided route of pairing Tom off with BLT instead.
And the less said about the pandering to the shippers the better - Janeway/Chakotay, will they/won't they.....oh, please, it's not The X-Files FFS!
