Wait, this isn't a Least/Disappointing set listing?
I'll be picking listing off almost every themes of lowest to highest (Note: some will be set in random order):
While 2 set like the 21310: Old Fishing Store & 21309: NASA Apollo Saturn V are loved by the community, the other 2 however are underwhelming.
21308: Adventure Time is rather overpriced due to the sheer amount of standard bricks used, there are some prints and new recolor here and there, but it still lack any play value and collecting them as a display set is still feels underwhelming if you compare it to the Dimensions figures.
I have no comment on the 21312: Women of NASA gender title, the figures have fine prints, but the builds looks fairly weak, almost tied with 21110: Research Institute from 2014 of weak mini builds.
Either a hit or miss, 41596: Beast & 41588: The Joker have pretty good shaping, while 41486: Captain Phasma & 41592: The Hulk is rather underwhelming by a degree. I will say these are decent parts-pack, but most of the more impressive sets are coming off from Comic-Con exclusive.
Lego, we don't need more Steve & Alex minifigure.
Anyways, these are nice play sets (sad how this is the only few themes that only focus on biomes/landscape rather than a vehicle), but few sets are pricey from the whole standard brick builds and have few glaring sets that interest me.
DC Super Hero Girls:
Another theme that uses the Friends figures design, the only things that stand out are the mini-dolls and the 2 largest sets, 41239: Eclipso Dark Palace & 41232: Super Hero High School, other wise, everything else doesn't seem memorial to a Lego fan personally. Also there are hardly any words for a 2018 wave.
This poor theme...
Personally I find the larger sets like 70352: Jestro's Headquarters & 70356: The Stone Colossus of Ultimate Destruction felt thrown in and focus on too much on play features over aesthetics despite these villain being a rugged mess. The heroes sets doesn't look appealing and centralized on the Battle Suit gimmick, but still ends up looking awkward for some.
Only reason why I put this on Average scale is due to the cool molds.
Don't have much an interest on the theme, Jungle is a nice inclusion and there no overpriced gas station this year, but a 60154: Bus Station that is still pricey.
They mainly focus on their Extended Universe this year, AFOL are mainly buying the sets for the figures and the only desirable set for me is the 76075: Wonder Woman Warrior Battle.
Hands of Time didn't grab my interest and repeat some design with the whole Stone Army/Snake hybrid enemy thing, otherwise, the molds are alright for "cultural" detail.
TLBM is arguably the best CMF this year, while the series is overflowed with mostly Batman costumes and a boring Arkham Asylum Joker, we get a ton of obscure figures we might never obtain in the Superheroes line.
Series 17 is the worst this year, but not for the overall series. Alot of repeat like Surfer, Restaurant, Historic, etc., ETC. And I don't get the whole Highwayman build-up since he isn't rare, but still a cool figure I suppose.
TNM some figures are repeat, most noticeably Sensei Wu & Lloyd, while other have great molds and characters that can be used in everyday city sets like the Sushi Chef.
The Lego Batman Movie:
While it still maintain some issue like the price, "buying sets for the figures", and the HELL TON OF BATMAN FIGURES, this is still a solid theme.
Alot of the villain sets have alot of personality (ashamed they lack screen time) and the redesign figures looks impressive compared the original comic counter-parts.
The Lego Ninjago Movie:
While the movie received mixed criticism, it still maintain amazing sets and a good Price-per-Piece ratio that put Star Wars sets into shame.
70620: NINJAGO City is something I want if I'd got the room for this masterpiece.
An underated line, but still keep it's head up.
The color scheme are still refined and have a mix of playset and vehicles.
Most of it's strength come from the Summer wave, 41324: Snow Resort Ski Lift for example have alot going on for a reasonable price.
They also have an issue of having the issue of AFOL mainly buying sets for the figures, most noticeably 76078: Hulk vs. Red Hulk & 76084: The Ultimate Battle for Asgard, all the other sets looks very nice, most notably the Guardians of the Galaxy sets. Not to mention they all have vibrant color scheme compared to DC.