Lou Schumaker’s review published on Letterboxd:
Thor Ragnarok is fun for sure, but saying it's just fun is doing it a disservice. It is fleetly paced and tightly scripted, with no major plot holes or useless subplots despite juggling about a dozen central characters. It's also the first movie that really nails the Thor/Loki relationship, precisely because it doesn't try to be heartfelt or sentimental. The most brutal scene in the movie is not when Hela stabs a million people to death, it's when Thor very casually tells Loki he no longer believes the trickster can be redeemed.
Cate Blanchett is fine as Hela--not Marvel's best villain, but then these are movies about heroes. I like the first Thor film more than most, but I wish both it and The Dark World had been as bold, smart and, yeah, as fun as Ragnarok.