If you really want to get to the bottom of this, you need to get both sets of speakers compared on the same system.....so either you bring yours over to your friend's, or vica versa.
Make sure the set up of each speaker is optimized and you have an eclectic selection of music that you know well.
IMO The Focal have a very detailed, forward and clean presentation, and the 714V are considerably more expensive than the V4s.
The Tannoys are good VFM and also present music in a direct manner, with an open, airy mid-range but a slight hard edge to the treble.
IMO both these speakers need careful matching, particularly the Tannoys.