The United People of the World? Yeah, I know that they use Unity, but Unity isn't a complete game engine, it's a very general development platform and Inxile did a lot of work beyond that.
...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.
2D graphics can look amazing, and so can 3D graphics. It depends on what's your target platform and on how much you're willing to invest. Hand painted 2D graphics that look awesome in high resolution and are animated can be very expensive. There's a reason why almost everyone uses 3D.