I liked them all for different reasons but for this I said Series 1, because I hadn't intended continuing to follow Trek after Voyager, and the Enterprise's beautiful ship and retro look just sucked me in. Then I discovered Trip's attributes (and Connor's acting, which made up for Scott's surprisingly bland portrayal) and so liked series 2 for the Trip focus. Season 3 being episodic had the best excitement since DS9, and 4 had the echoes of the Original Series. I was set up for 5 - 7, but it was taken away from me and I felt like I'd lost my baby rattle 
