I agree on The Lego Batman Movie - most recent animated DC movies are pretty bland, so it is a breath of fresh air for sure. (Even though I just complained about product placement earlier, I’m somehow fine with a 100 min LEGO-commercial. Go figure.).
I also think a lot of the slo mo scenes can be trimmed as a lot of them go on way too long and get kind of annoying after a while. Definitely cut the Aquaman choir and the Wonder Woman arrow plot. Cutting the first Manhunter appearance might be good too. I don’t know if I would want any Whedon content in the movie on principle but some scenes might work. Cropping to fit the entire screen would be a good middle ground for aspect ratios too.
I’m on the fence about the Aquaman-worshipping. It is certainly cringy (that woman sniffing his wool pullover…). But in a weird way it also adds personality to the movie. It’s one of those Snyder-isms I’m willing to tolerate.
ed: The arrow-scenes didn’t bother me. I think they’re fine.