Mirage OMD-28. I have its little brother, the OMD-15 and couldn't be happier. Fills the room with no suckouts, bright spots, venitian blinding, or boominess.
Mirage has painstakingly engineered these to throw a dispersion pattern and interact with the room on average the way instruments and voices radiate their sound patterns. Rather than being a cylindrical omni pattern like the MBLs, they skew the image about 30% to the front and radiate more like a tilted mushroom pattern.
It works! I had live musicians in my living room when I got married and the OMD series fills the room in very much the same way. Yet, they image well, are surprisingly resolving, and have excellent bass. The OMD-28s are spec'd down to about 26 Hz. I'm inclined to believe it because I'm definitely getting the 32Hz promised on the OMD-15s.
The treble is also quite detailed, yet very smooth, and midrange is clear and transparent, but fully fleshed out.