The first one without Goku being in the story turns out to be the best one yet, probably because the story is unable to rely on constant deus ex machina spirit bomb stuff (aside from the almost-literal deus ex machina found near the end, but whatever).
Most of the movie is a fun tournament where all the characters get to beat each other up and have races and tell jokes. This part is great. You know the entire time that it's gonna get ruined by a boring fight scene with boring villains, but it's great while it lasts.
Like with Broly, the very fact it mixes up the formula makes it a whole lot more interesting than usual. Yeah, it still devolves into mindless fighting, but the stakes are more fun when you know Goku can't save the day (mostly). There's a couple REALLY iffy moments in the climax though that hurt the movie significantly. With just a bit of editing this coulda been great.
Like the first Cooler movie, this actually fits perfectly in the timeline with no issues. It might even enhance the main series by being included, unlike Cooler. It's a darn fine Dragon Ball movie, even if it's not much of a movie-movie.