Are you kidding?
I've never liked Enterprise.
My opinion on the best Star Trek in order from best to worst:
ST: TOS
ST: TNG
ST: DS9
ST: Voyager
Enterprise.
Problem with this is that although ST:TOS, ST:TNG had good character interaction there wasn't really an overall arc for the series, which is probably why ST:DS9 is really my favorite among all of them.
I could never see anything good about the series:
The Captain wasn't as engaging as Kirk, Picard or Sisko.
The "background" characters didn't seem as alive as the ones from the other series.
I've heard people mention that because the last year or so was "decent" that for some unfair reason the show is being cancelled. Guy's, any other new show that didn't have the ST name behind it would have been cancelled after the first season if they dared to show that kind of dreck.
There's show's like:
Babylon 5 (Another good series gone)
Andromeda
Battlestar Galactica
Stargate
Stargate Atlantis
Firefly (MUCH (not even in same league) Better than Enterprise but cancelled

)
Heck, those cancelled/ended shows are a million times better than Enterprise could ever be, geesh Even Earth: Final Conflict was better than Enterprise!
Every time I think of Enterprise I wonder what Gene Rodenberry would have though about it...and I think "Not Much".
Could someone who like this show tell me what's so good about it? and have they watched these other shows?