Low bore axis 9mms that I can think of right now, and have shot:
CZ-75
BHP
P7
M&P9
Well, I shot an M&P40. All are very good guns. The CZ is a DA/SA that can be carried cocked and locked. The BHP is a traditional SA. The P7 is a squeezecocker, and the M&P is a striker-fired polymer duty gun.
I think any one of them would be a killer addition to a collection of 9s. I own two (BHP, P7), and am about to own a M&P in .40 S&W. The CZ just never really called to me, even though there is not a darned thing wrong with it.
I think the whole bore axis thing is a relevant factor, but that it can be overstated. You can compensate for it with technique, but it's nice to not have to do so. I think a lot of mediocre shooters blame poor performance on barrel flip due high barrel axis.
Mike