The Newlyweds' (Tyler and Amy) - I was also very impressed with their green alien, not just the build itself but their forethought into having that explosive fall into the alien mouth. I had somewhat pre-judged them the first episode in their ability to work together but they really turned it around this time.
The Eccentrics (Sam & Jessica) - I don't get these two and part of me feels like it's just an act. I kind of want to go back and watch the show again and see how they edited it because I feel like they must argue with each other early on to get screen time and drama, but yet they still put together a decent looking cat in the end. Definitely eccentric though, I won't mind when they leave just on that account.
Clark Kent & Superman (Christian & Aaron) - There is definite talent here but man those guys are cocky. So funny when the two people cheering on how their set got destroyed was essentially themselves. I mean, hey you need to sell it, better than saying "ooh that didn't work"... let the judges decide. So I get that part but still, we've got over-confident "Lego Instructor" and ginormous Army Sergeant. Interesting team.
Married Thespians (Flynn & Richard) - I could care less about their "lifestyle", though I was concerned in the beginning that the producers would emphasize it way too much and I'm pleased that so far it's been rather subtle. Funny seeing the opposites attract thing going on, the nervous stressed out one with the calm level-headed one.
Brothers Who Brick (Travis & Corey) - These guys are interesting because so far their builds have been rather "bricky" and "blocky". Not that everything has to be smooth and polished but that type of thing might be required down the road so I'll be interested to see how they adapt.
East Coast Brickers (Mel & Jermaine) and The Unicorns (Krystle & Amie) - Neither of these teams have gotten much screen time and are somewhat under the radar. If they don't differentiate or stand out in some way I don't see them sticking around long.
Father & Son BFFS (Manny & Nester) - These two are funny to watch interact and listen to. Like others, they somewhat have 'hobby-level' talent but I don't see them lasting long.
The Bearded Buiders (Boone & Mark) - These guys are smart, fun, and to me have seemed to be very versatile. The challenge could change, and so do the requirements, but they still tend to bring a polished end product and I think that's one of their advantages is their adaptability. Only 2 episodes in though, so we'll see.
Higher the Hair, Closer to God (Jessie & Kara) - Glad to see them go. Between episode 1 & 2 they didn't present that much Lego-building talent. I'm sure their over-the-top personalities and facial expressions got them on the show. Next...