I love all the Star Trek series, but I like the "middle three" (DS9, TNG, Voyager) the best. It's hard to pick which of the three I like best though, but this one is really good. love the characters. This along with TNG and Enterprise I felt could've easily went on for another season (or two?). Goes without saying that this is a great sci-fi series and a great Star Trek series. Obviously if you are a fan of one or the other you should check this show out.
An entertaining attempt to return start trek to it's frontiersy roots. A companion show to DS9, voyager took the familiar route of being set on a starship as opposed to the station setting in DS9 to avoid repetition and it worked. Whilst DS9 broke new ground with a darker tone and season wide story arcs voyager transported us to unknown worlds and introduced brand new races to trek lore, add to this the first female captain and a return to fan favourite baddies the borg and they had themselves a winning combination. The series has been accused of using too much technobabble to resolve issues but lets face it, if you watch science fiction you have to expect a bit of science otherwise you have "pigs in space"!