Of that list, I've watched Arrested Development, Malcolm in the Middle, and Parks and Recreation. I do think those shows are better because of the lack of laugh track.
Laugh tracks remove all subtlety from a comedy. You are told when to laugh. As a result, the jokes have to be more obvious. Even if there is an attempt at clever wordsmithing or innuendo, the producers have to bring it to the forefront because how weird is it to insert laughter at a spot that is seemingly not funny? Not to confuse this with inserting laughter after an obviously lame joke.
I've been impressed by those three shows because they had good writing and didn't need to rely on laugh tracks to tell you when they cracked a joke. In fact, I shudder to think how the shows would have looked with a laugh track. I'm sure someone did an experiment where he inserted a laugh track into an episode of a show without a laugh track. It would be pretty awkward I think.
One of my favorite gags in Arrested Development was when Gob suspected his girlfriend of cheating on him with some guy named Hermano, being totally unaware of the fact that she is speaking to her hermano, which is brother in Spanish. At one point in his ranting, he tells his own brother, "Thanks mon frere - that means brother in French. I don't know how I know that; I took 3 years of Spanish." That kind of layered joke won't hit everyone at the same time. Some people pick up on it right away. Some others need just a couple of seconds for the joke to sink in. And possibly there are some people who just won't get the connection, but they can move on because the episode is enjoyable to watch.
A laugh track after that joke would have been ugly. How do you time it? If you place it right away, then the people who need to marinate in the joke first won't have that opportunity because they're being told, "Isn't that funny?" If you place it a second after the joke, then the people who get it right away will wonder if another joke's been told. In either case, people who don't make the connection will shrug their shoulders at the weird time that there was laughter. Why is that so funny?
I loathe laugh tracks. I watch a few shows with them (That '70s Show, WKRP), but ugh. I was on a flight that showed an episode of Friends. I mostly like Friends; there were some dumb shit on that show, but they had some pretty good jokes. Putting in those cheap headphones that transmit air(?) made everything sound tinny and higher-pitched. That laugh track just drilled through my skull and humped my brain. I couldn't stand it.