Yea, I liked the original SG. Never watched Atlantis. But SGU, I don't mind. I've watched the first few episodes and quite enjoyed them, the plot does seem to be moving horrendously slow however. As for action, the best scene i've seen (see what I did there? ), is where the damn doctor faints and collapses. But the story line has potential in my opinion and the show could pick up.
The jury is still out on this, i'll give it a few more episodes and see if it improves.