I doubt China is going to get the Slava. It's not like China can't build something comparable. The systems aren't compatable, the reactor sucks. It's old. There's practically no point of getting one. Yes, crusiers are great, but China should and can build one on their own.
As for the Udaloy design, that's a destroyer! But then, it can be extended and enhanced......... The ASM launchers (whatever those are before the aft VLS, in tubes, NOT at an angle.) are weird. And I can't really see any ASW weapons....