Best imaging and sounding bookshelf speaker

I have a pair of Spica TC50's (crossover recapped). I'd like to hear your opinions of what you all think is the best imaging and sounding bookshelf speaker. I will always own my Spica's but I also own a pair of Apogee Centaur Majors. I simply haven't found a speaker that images as well and sounds as natural as the TC50's. Thanks in advance for your opinions.

Associated Eq: Van Alstine Super Pas 3imodified by Tom Tutay, Marsh P2000, Rogue 88 Tube power amp, Scott Nixon Tube Dac, Oppo DVD player, Systemdek IV Electroic TT with Rega RB600 and Ortofon Rondo Red and Jolida JP9 modified by Tom Tutay.