With Season 1, you can tell that the writers are really trying to be funny, as opposed to Season 2 and onward where it comes more naturally to them. And maybe there are times when they try a little too hard. There are some gags that feel a little forced or awkward, and the plots tend to rely on some pretty big contrivances (like Bart suddenly learning French completely out of the blue in "The Crepes of Wrath"), while others just feel disjointed ("Homer's Night Out" abruptly and awkwardly shifts from Homer and Marge's marital argument to Homer needing to teach Bart to respect women), and others still are hardly anything groundbreaking (name me one sitcom that hasn't done something similar to "The Call of the Simpsons"). And the characterizations hadn't been ironed out yet - nowhere is this more evident than in "There's No Disgrace Like Home", where Lisa is an obnoxious brat, Marge is a slovenly drunk, and Homer is the concerned level-headed member of the family who willingly pawns the TV set in order to afford Dr. Marvin Monroe's therapy session.
But in spite of that, the season does have its moments. "Bart the General" is the first full-blown movie parody that the show ever did, and it's just as clever as anything from the later seasons. "Moaning Lisa" is a brilliant character study for Lisa that establishes her as being on a different wavelength than everyone else in Springfield, and also contains a great humorous subplot with Bart and Homer playing video games. "Life on the Fast Lane" is probably one of the best "Homer and Marge's marriage" episodes, with equal parts emotion and humor, not to mention Albert Brooks' first really great guest appearance. And "Krusty Gets Busted" is a tour de force from Brad Bird, weaving a clever little mystery that actually is solvable if you look at the clues, and setting up Sideshow Bob as a classic recurring character.
Animation-wise, yes, it can be crude, but at other times it can be quite brilliant. Homer pounding on Bart's bedroom door in "Bart the Genius" is one of my favorite bits of "Simpsons" animation ever - his rage is perfectly conveyed in every drawing. "Moaning Lisa" and "Life on the Fast Lane" have a lot of great subtle drawings that say more than dialogue ever could. Krusty getting a pie in the face from Sideshow Bob and then punching his lights out in "Krusty Gets Busted" is one of the most perfectly timed visual gags this show has ever done, and Krusty's heart attack elsewhere in the episode is full of hysterical drawings. And even the so-called "sloppy" animation that got through in "Some Enchanted Evening" has some great fluidity and expression, most notably Ms. Botz's "I said you're gonna watch this tape and you're gonna do what I say" line. I was amazed to see something that expressive on "The Simpsons".
So no, I don't consider Season 1 inferior. It's different, sure, and it has its share of weaknesses, but it still entertains me. It set the stage for the next seven years, when the show would blossom and flourish as the greatest animated series on television. Every great series needs to start somewhere.