Ok, first of all SGU deserves a fair chance before everyone starts jumping on the hate train. Give it at least one season to grab your attention! However I will agree that the plot, as of now, is pretty boring there is hardly any interaction between alien races (which is to be expected of from any stargate). But you have to remember the writers are trying something new and different for the stargate series.
I say if you are a true fan of stargate you DON'T compare it to sgu or sga because they are not in the same class. Although sgu harbors the name "stargate" the whole aspect of the show is different from sgu or sga.
Once this season finishes up and you don't like it still, then start ranting about it, at least give them a chance!