Bonfire of the manatees Unseen
Millhouse of Sand and fog C+
The Girl who slept too little B
THOH XVI C+
Marge's Son Poisoning B+
See Homer Run C-
The Italian Bob B-
Christmas Stories B+/A-
Homer's Paternity Coot C+
My Fair Laddy A-
The Seemingly Neverending Story A-/A
Bart Has Two Mommies-I haven't watched the ending yet, but probably B-
Well, it certainly has had some real duds and bad decisions, and almost any episode has a seriously overlong gag (if not three like D'Ohwhere) but there are two things that they are getting increasingly better: animation and characterizations (well, except Bart's). I actually think Road To D'Ohwhere (even with the overlong gags), TSNS and My Fair Laddy were all pretty good ( the last one is in fact better every time you rewatch it, I would kinda like the Homer's subplot to go somewhere, though, cause it was pretty funny but it hasn't got a story). I also liked the Xmas Special, it was certainly better than the random three story episode. I don't know what to think about The Girl Who Slept Too Little, I also think it had a weird structure. And Marge's Son Poisoning could have been very good with a better characterization of Bart.
Paternity Coot I found it to be a total boredom of an episode and a pretty pointless one, while See Homer Run was cringeworthy pretty often, though a little more entertaining for some reason. Last Of The Red Hot Mamas was tolerable but it seemed a little half-assed, as if they could have done something much better with the same ideas.
I hate the decisions of giving Bob a family (not so much the decission but the way the family is portrayed) and Milhouse's parents getting back together (I hate that, Jean should have known this was one of the good changes in the series). However I don't think those two episodes were so bad on themselves. Italian Bob had a good amount of lol moments imo and Milhouse Of Sad And Fod I didn't find it so bad on itself, just a tad forgettable and a little boring (but not as much as the two last acts of Paternity Coot, which was really half-assed for me, there were some good concepts but it needed a lot of rewrites).
Overall mixed feelings. Season 16 had a more regular quality and it seemed like they were going in the right direction. This season is pretty mixed but the best three episodes or so are among the nearest to season 8 quality the show has produced under Jean's direction (I would repeat I include aspects like animation and characterization of secondaries, like Mr. Burns). Another thing I find curious is the style and premises of this season reminds me more of the Oakley and Weinstein tone (experimental episodes, development of a secondary, family conflicts) than the other Jean seasons, which were more reminiscent of Jean and Reiss style during season 4 (I'm talking about styles, not quality). I kind of missed the Mirkin-style touch currently, cause they can't manage to do episodes of that kind today.
One last criticism would be that there are some gags that doesn't quite fit. For example in My Fair Laddy If find it to have a very good subtle/gentle feeling overall but things like the change of sex mentioned in the beginning or even the Agness Skinner's gag (which was anyway good for a chuckle) seem to be kind of cheap sexual jokes. "Dream On bitch" in TSNES seems cheap use of curses. Smither's desire of changing sex in Road To D'ohwhere...and some overlong gags. Things like those substracts from the gentle humor and good characterization the staff is achieving at some moments and reminds me more of shows like Family Guy and South Park. I'm not a priest, I don't mind some curses or sexual jokes, but it has to be a good reason for them. I wonder wether the staff doesn't notice how those little details affect to the general feeling of the episode or they notice but just don't care, but I would prefer a couple of jokes less if the jokes are going to be of that kind.