Here's how I would initially edit 2 & 3 to get it to one decent movie. There would be other small cuts that could streamline it more, but these would improve it immensely to begin with.
1. The Rave Scene and really anything in the cave - all gone. I know it's supposed to be a celebration of humanity versus machinery. But it was dumb then and it's dumb now. Morpheus' speech? Gone.
2. Even though she's gorgeous to look at on screen, almost everything involving Persephone (the Merovingian's wife) is gone. The scene where she "Vampires" a kiss from Neo while Trinity watches and the nonsense with the Werewolves bogs things down terribly. It would cut immediately from her taking them off the elevator directly to bringing them to the Keymaster.
3.
The Kid - Gone, gone, gone. He's annoying as hell. He's supposed to tie you into the video game as apparently he's important there. But who cares?
4. Even though it'd be choppy, remove almost everything involving Commander Lock. The love triangle, such as it is, with him, Niobe, and Morpheus is just terribly shoehorned in. And his strategic decisions and attitude in defending Zion is just a perfect caricature of "strutting martinet" - and is absurd.
5. The fight scene as they enter Club Hel. It's just absurd. I know it's supposed to kick things off with a bang but it's dumb. Just get right to Trinity threatening "Merv" and get on with it.
6. Shorten the defense of Zion. It's just way, way, way too long. I don't mind the Mifune character, but there's only so many times I need to see him and his cohorts squishing their faces and shouting into the camera "Knuckle Up!" and "Noooooooooo!!!!"
7. I'd excise all things Cornel West because I think he's a disease on America. But that's just me being political.