What would you do if 20 people replied, 6 in favour of each monitor and two saying they'd used all 3 and they were all excellent ?
Similarly, what would you do if 20 people replied and between them all, they all came down shitting heavily on the three {ie, maybe 7 hated the Adam, 5 hated the Focal and 8 couldn't stand the Tannoy} ?
You'd be in exactly the same situation !
I guess that's just a roundabout way of saying that when it comes down to it, choosing monitors is a gamble because even if you test out a few in a store, it's not the place you'll be mixing and monitoring. Unless you have a way of taking all three to your pad and giving each set an extensive workout in varying conditions like you will do when you settle on a set, what you'll mainly get from people advising you is preferences of which ones we like or don't like.
I know that's probably about as helpful to you as being locked in a room with a hungry tiger but what I would advise is that of the three you've narrowed your choice down to, pick one, forget the others and go about cultivating a relationship with your new set. Get to know them and how they interact with your environment and if some things aren't satisfactory, then work out how to get around that {lots of great advice here !
} and don't try to dream of what might have been.
It's always a gamble.