I liked the Argonian voices in Oblivion better...
In fact, a lot of the voice acting in Skyrim has lost some it's authenticity. Argonians don't really have the "hiss," Dunmer don't have thier raspyness, Khajit are kinda... meh. And all the Nords sound like Arnold Schwartzeneger, which made me choke on my drink the first time I heard it.
I prefer the ones in this game, I like the Khajiit accent

, and the Argonian male voices are just so suave

But Dunmer are also awesome, sadly the only Dunmer that I like is Sondas and the one from Dawnstar.