When Kes was tossed and they were throwing in 7o9, my first reaction when I saw a picture of her in her "Outfit" was "Well... ratings must not be going very well, they're hauling out the borg-boob card."
I'm not trying to take her contributions to the show or her acting down a notch or three, but come on.... nobody else was wearing an outfit like she was..... granted Kes started wearing something similar around the time she left the show, but that to me only showed where the show was heading.
One of the things I didn't care much for with Voyager was how as others mentioned, they only focused on a select few characters to unload development for..... The Doctor, Seven of Nine, Tom & B'Elanna.
I don't count Janeway, since character development is a given for all Star Trek Captains.
I didn't mind the conflict between Janeway and Seven, and I kinda figured it'd be an on-going thing through the series, but what I didn't get was that Seven was so confrontational compared to say Hugh in TNG. Hugh knew even less on what the heck was going on, yet he seemed to go with the flow of things...... meanwhile, Seven seemed to punch everybody in the face along her path towards humanity (metaphorically speaking of course)
I remember people in the DS9 section complaining about Kira being angry, hateful and violent all the time..... yet Seven of Nine seemed to take the worst of Kira, mix it with some Data and sprinkle a bit of Rebellious Thomas Riker on top for good measure.
I must admit that beyond the teenaged boy appeal of Seven's looks, her character did bring some needed story development to the show and Ryan did a decent job with the character.... but she is not my favorite character on the show.
To be honest, I don't know who my favorite Voyager character is.