I'll try to break this down.
Cavs
They do this for a couple reasons. First, the money perspective. Even though Kevin Love has had a great bounceback season, he's still being paid 28 million per year. For a small-market team like the Cavs, that's too much. They get a younger player in PJ Washington who can kinda fill his role, fits the timeline better, and is much cheaper. The second reason is talent, as they're better after this deal. Brogdon is a great fit at the starting SG position, and can be their backup PG that they need, and also provide a bit of everything, from shooting, passing, and defense. They also get a few interesting young assets in Oshae Brissett and THT, who they can use to their liking, possibly as trade bait, as well as a bunch of seconds.
Draft: Dyson Daniels at #14, Josh Minott at #39, Jaylin Williams at #60
Starting 5:
Garland-Brogdon-Markkanen-Mobley-Allen
Bench 5:
Dyson Daniels-Levert-Okoro-Washington-Moses Brown
Rest of bench:
FA-THT-Osman-Josh Minott-Brissett-Dean Wade-Jaylin Williams
Pacers
They're getting two wings that are still relatively young and are good fits next to Haliburton. Grant can be the first/second option and the primary defender, like what he wants to be. Oubre can fill in the other forward spot or come off the bench. They're also getting another first round pick that falls at #15.
First of all, this gives them loads of financial flexibility next year after Westbrook's contract expires. In that same offseason, Kelly Oubre Jr's and Jerami Grant's contracts will be expiring, so some of that money would likely be allocated to resign them, but they would have loads of money to spend, whether it's used for FA (though I'm not sure players want to play in the Circle City), pick-acquiring with bad contracts, or saving the money for when guys like Haliburton are going to get huge raises. They're getting rid of Brogdon's and Buddy's contracts, which run into the future and are pretty hefty. They immediately buyout Westbrook.
Draft: Jaden Ivey at #5, Tari Eason at #15, Christian Koloko at #31
Starting 5:
Haliburton-Ivey-Oubre-Grant-Bitadze
Bench 5:
Duane Washington-Duarte-Eason-Jackson-Koloko
Rest of bench:
Terry Taylor-Nate Hinton and a bunch of FAs
Pistons
Sexton is the perfect backcourt partner next to Cade Cunningham and fits the timeline of the roster. Cunningham can run the show, playing as their primary ballhandler and providing assists and scoring. Sexton can be the go-to guy when they need a bucket, as last year he averaged almost 25 points per game. Giving up Grant stings, but Sexton is a better fit with age and with his playstyle.
Draft: Chet Holmgren at #3
Starting 5:
Cunningham-Sexton-Bey-Holmgren-Stewart
Bench 5:
Frank Jackson-Joseph-Diallo-Bagley-Olynyk
Rest of bench:
Saben Lee-Carsen Edwards-Livers-FA-Garza
Lakers
This should be the easiest sell. They get rid of Westbrook and that awful contract but still get a lot of value in return, without giving up the 2027/2029 firsts or Austin Reaves. Kevin Love had a great bounceback year with Cleveland and would be able to use his shooting on the Lakers who need it. Plus, he already knows Lebron from Cleveland. Buddy is another floor-spacer, and was a target for them last year, even though nothing came out of it. TJ McConnell can be a great backup/starting PG who provides great defense.
Starting 5:
McConnell-Hield-Lebron-AD-FA
Bench 5:
Nunn-Reaves-Stanley Johnson-Love-FA
Rest of bench:
FA-McClung-Windler-Gabriel-FA
Hornets:
They finally get their center. Even though it's a high price, Myles Turner is worth it, as he's a great rim protector and stretches the floor. They also get two additional seconds to offset the loss of #15.
Draft: Nikola Jovic at #13, Justin Lewis at #40, Dereon Seabron at #46
Starting 5:
Ball-Rozier-Hayward-Bridges-Turner
Bench 5:
FA-Bouknight-Cody Martin-Jovic-Plumlee
Rest of bench:
FA-Seabron-Lewis-McDaniels-Thor-Richards