Hi Mark,
I would choose the Altos as my opinion is that, contrary to what is advertised on internet, the new Electra line of Focal is inferior to the old Utopia line. The updated Be tweeter may be better than the previous model, but the old one was already very very good. It takes more that just a good drivers to make a good speaker. How else companies like Wilson would manage to produce top of the line speakers?
Regarding the new Utopia line versus the old Utopia line, IMO it is very difficult to compare them because of the huge price difference between the two lines. For example, in The Netherlands the Altos can be had for 6-7 thousands euros while the Novas for around 13. On the other, hand the retail price of Scalas, i.e. the equivalent of Alto in the new Utopia line, is 25 thousands euros (though at some point I have seen a 2nd hand pair for 17-18 thousands euros, plus I am certain one can get 10-20 percent off the retail price). That is approximately a factor of three between Alto and Scala prices.
Finally, in your pm you have mentioned that you listen music at low levels. Since in general floor standers need to be cracked up a bit to come to life, check if any of these speakers play well at low levels. A pair of good monitors, e.g. Micro Be, Diablo, Dynaudio C1, with a good versatile subwoofer will most probably do a better job at low levels.
Keep us posted.
Best wishes,
Paul