Yeah, they nerfed Warrior when Lee Sin/J4/Vi were considered OP, but when they nerfed it they also nerfed all 3 champions, and buffed the other jungle items. Make 0 sense. I've tried devourer Vi and didn't like it much, with Warrior you still do more damage until about lvl 11 and then you fall off really hard compared to devourer, but I've found in that a lot of my games that I need the early pressure from Warrior, even though it's extremely underwhelming once I put the 2nd point in R. I also like being able to make more plays with more CDR, but I guess Riot thinks that the CDR somehow makes Warrior a good item. I'm actually considering just starting to buy the jungle item and buy Black cleaver without even buying warrior, into cinderhulk.