So, i know about all that talk off how DS9 plagiarized Babylon 5, but, taking a look back, even though the storylines are different, B5 did got a lot "Star Trek" stile in the begging. Some episodes you can actually pretend you're watching a TNG episode, but centered on a space station.
Any toughs?
OBS: I am NOT trying to star a STAR WAR HERE! Let's talk like civilized vulcans shall we?
Here is a wiki page that really delves into the ds9/B5 debate:
http://en.memory-alpha.org/wiki/Babylon_5
You can decide for yourself what you want to believe. But as for me, other than the premise of a space station, I never saw DS9 as a rip off of Star Trek, and I am a fan of both shows. I am sure JMS would have jumped at the chance to write for a Star Trek show if offered, and he may have even pitched his idea for B5 to paramount, but the idea of a starbase in Star Trek predates B5 by a good 25 years, if you go back to TOS. SO, to me, when DS9 was developed, it was really the next logical step after having two shows and 5 movies (at that time) about star ships, and just happened to be done simultaneously as B5. I think a starbase premised show was bound to happen for Trek, sooner or later, regardless of B5. As for plot or character similarities, I think there is such a thing as a zeitgeist when it comes to sci-fi, and many sci fi writers have the same influences, which creates similarities in writing. Not to mention, so many writers cross-pollinate between sci fi shows.
Indeed, I think it can be argued that Star Trek may have been a major influence on JMS. He had several Star Trek actors appear on his show, as well as the likes of DC Fontana write for B5 (see article link above). In fact, I don't know if DCF and JMS's paths ever crossed prior to B5, but they both did write for Filmation's He-Man, so at the very least, that is an example of a trek writer working on a show JMS did, and perhaps by writing for the same characters on the same show, it may have influenced JMS's style somehow, even subconsciously.
Regardless, I am a fan of both DS9, and B5, and I enjoy both to this day. Like the Star Wars VS Star Trek debate, I find it moot because I like both franchises.