Sadly Warrior's aren't that great from what I've heard. I think they might be okay with the bonuses you get from having 30+ of them, but they seem really underwhelming. Knights are kinda the same, but at least they can march 14". I like chameleon skins, but they're expensive but I think they're worth it if the rest of your army holds up on it's own. Kroak got nerfed read: gutted
by FAQ's after destroying everything at 2e launch. Bastiladon's are good, super tanky and can dish out decent damage at a range. Carnosaur is alright, but I play a really turtle style list so I don't get to use them often. Astrolith bearers are pretty good, but getting a block of 40 Warriors wholly within 12" might be a pain. Seraphon summing is consistant, but it pretty much means that you have to use less spells with your Slann, which isn't a huge deal, but summoning isn't "free" like with some other factions.