...and a LOT less details.
2d graphics are still the prettiest to this day. BG2 looks a million times better than Warcraft 3 or even Dragon Age.
You do know that the backgrounds and characters in BG2 are pre-rendered (3D), right? The only reason they were "flattened" to 2D was because of performance - we did not have powerful 3D accelerators like we have today.
And the amount of detail has nothing to do with the game being in 2D. They just put alot of effort into the game - but it could have been done in 3D too. But like I said, that was not an option back then.
they cant bring this level of detail with nowadays hardway either. Just look at the scenes from Torment and IWD2 in the trailer video and tell me which modern game even comes close to this.
3d graphics only look good when stylized and colorful, attempt anything realistic and the result will be inferior to the 2d approach.
Off the top of my head I would say you should look at Diablo 3, Dungeon Siege 3, Trine 2 or even the video of Wasteland 2 pre-alpha. They all look very good and are all in 3D, even though more than that is possible with today's technology.
And to top it off, you can have better superior animations, lighting, etc. with a game in 3D.