Hi,
the actual mesa thiele with Celection C90 sounds really good too!!! But same same here in germany they are very expensive.
I own a thile with the new ev12l and a self build one with the eminence delta 12 pro. the eminence is a real beast, it can handle 800W(!) impulses and has a power of 400W rms!!!
It sounds great but you have to drive it very loud. the eminence thiele was my first 1x12, back in the days I had a stereo poweramp so i connected one of my two marshall 4x12 to one side of the poweramp and the 1x12 to the other side. Belive me or not, the usable sound(! not only pressure) of my 1x12 was so enormous that I wasn't even sure that my 4x12 was connected to the amp - I was really amazed. Some days later I sold both Marshall 4x12es... and bougth a second thiele - now my setup is a little hand-held wrecking ball!
Comparing the ev and the eminence the ev has less bass but more mids....both sound good to me and fit very well together...
APEMAN