I still feel Threshold is the best of the three, perhaps because they're not trying to make the alien tangible, and therefore unbelieveable. Invasion is plodding along, but I know that I only care about characters who really aren't important -- something is wrong there. And the closer they get to seeing the creature that closer I see the show gets to jumping the shark... too much build-up. Surface is just plain laughable. I find it funny how Surface and Invasion are basically stealing from each other. "Hey, let's tag the creature with a GPS transmitter!" "Great idea, we'll do that too!" 

anyway im loving surface i can't miss it its so interesting its like big things in the water COOL! i like that there like not aliens its different but thats my opinion now im the thread-killer! 
