Don't care all that much.
Paul D set up the Chesters, toed-in quite a lot, with his amp etc, and I thought the imaging was very good - but might just have been the music which he played. At home, I tend to lie sideways-on to the speakers and either read or just listen if I'm on my own, otherwise I tend to chat. I've got some orchestral pieces which seem to image quite well, but then I've got to sit up, which is a bit of a nuisance.
I can never really place the bass instruments, but the higher pitched things like flute and triangle, are much easier to spot.