Spoilers for Deathstroke! If you haven't read Priest's Deathstroke I 110% recommend it, the man is one of the best writers I have ever read.
"The entire planet is at risk simply because this man is incapable of hugging his kids." That sums up Deathstroke pretty well. Loved the crossover. I think the current Deathstroke run is in my opinion the official "go to" run to describe Deathstroke's character. Wally also was written really well I thought. Made me like him a lot more. Heres 3 pages I loved from just the crossover. It was one of the few times I loved a crossover without there being a massive fight.