Electroslacker the Elacs will sound great for the money but don't have the tremendous resolution of the pure Beryillium drivers for sheer bang for the buck the Adante's are great.
Bownsf,
As mentioned before we sell both the Kefs, and the Paradigm Personas, and we sell the Legacy's which use AMT drivers.
Personally I would go with the Personas, setup correctly nothing under $25-30k can beat them.
In 30 years of professional audio never heard a set of speakers that were this affordable yet offered the highest level of resolution, with unbelievable imaging, compound that with stunning cabinetry, small footprint, and high efficiency makes the Personas hard to beat.
Brownsf, your wife is correct, the Ref 3 are a bit more forward then the Personas, which have a slightly silkier top end with an overall clearer midrange, the KEF's do offer a very wide soundstage, we use our Ref 3 with a matching Kef Ref 2 center channel in a dedicated Home Theater that rocks.
Your obsevations about the Pesona 5F are correct, the large cabinet makes the entire presenation bigger and more effortless.
If you match them with good electronics, and cabling, you will have a speaker that is very hard to beat at 2-3 times the price, the Personas are really that good!
If we can be of any further guidance please feel free to PM us.
Dave and Troy
Audio Doctor NJ