You're going about this the wrong way for a couple of reasons.
Never choose speakers to EQ your other decisions, whether it be questionably bright sounding electronics or room. If you simply prefer a "warm" sounding speaker, that's different, but don't choose any such warmth to solve something else. That's like having a soup that is too salty, and thinking that extra pepper will solve it.
The other thing I would also greatly reconsider is spending more on the speakers, and less on the electronics. Not that your electronics choices are very expensive, but they do represent more money than the speakers you are to choose.
I have a Cambridge integrated, and have setup a pair of BR2s temporarily, a gift I bought for a friend from the classifieds here, as well as a suite of PSB HT speakers, as well as some electrostats. I am very unfamiliar with both Axiom and KEF. These latter two are sometimes described as having a brighter sound by some folks.
For PSB, those are the bottom of the line, entry level. Even if a good value, the step up to the Images is immediately noticeable. Let alone climbing up to the new Imagines, or rather pricey Synchrony.
The MAs are nice as well, and I would probably consider those more similar than not to the PSB Images. A step up to the RS series is also an immediately noticeable improvement, coupled to a much nicer cabinet.
I would also like to offer the suggestion of Ascend Acoustics. I would very, very easily take even their bottom of the line 170s over both the Alphas, or BR2s. Much improved transparency, IMO.
Good luck, just my first thoughts.