Stargate SG1 Rules!
I've seen all of the first 6 series' now, it's the best Sci-Fi series around at the moment, it wouldn't be a good idea to take it off air. I'm very pleased that SG-1 will be back for an 8th season. The 7th is coming up on Sky One in a few weeks and I can't wait to see that .... so much so in fact that I downloaded the first two episodes!
Enterprise may be getting less ratings than SG-1 at the moment, but that's because the first two season's haven't exactly been brilliant and many fans are getting fed up cause the show wasn't really going anywhere .... plus they were simply contradicting many things that were established in the later series' (TOS, TNG, DS9, VOY) .... which of course take place further in the future than Enterprise.
From the looks of things the 3rd series could take Enterprsie back up the ratings, but I have to wait until January next year to see any of it!
.... back to SG-1, it's a quality show and should definitely be around for at least an 8th series, maybe more afterwards.