You'd think that setting this in a city would make the greater potential kills of the Predator even more threatening, but that would be wrong. There's never really a sense of the Predator stalking victims, it just drops in and kills drug dealers, because they have weapons.
Every character in this movie is on speed AND caffeine. Why are they all spastic? Is it the L.A. heat? Everyone is sweating profusely, too. It's really annoying. The shootout between the police and the drug gang is way over the top and impossible to determine why there aren't dead bodies lying three deep with all the shots being fired.
Danny Glover is no Arnold Schwarzeneggar. He's tough but not a badass like Arnold's character "Dutch" was in the original. The Predator that Glover battles must have just gotten his hunting license. In fact, Los Angeles is like a game farm compared to the jungle where the first Predator battled Dutch. It would be pretty simple to hunt animals in a game farm, so the Predator of this movie isn't making his safari much of an adventure.
There are two things that really save this movie. The practical effects associated with look of the Predator. It remains an iconic alien creation. And the final battle on the rooftops between Glover and the alien is entertaining.
