Poll Save three Trek series!

[Nyotarules]

TOS, since without it there would be no Trek
SNW
DS9

 

[Phily B]

DS9/TNG/TOS. I've only seen the other ones once, apart from a few episodes here and there.

It wasn't really close, but SNW did cross my mind.

 

[O'BirchRod-ien]

TOS
TNG
SNW

Honorable mentions for Voyager and Enterprise