I have a specialized and a cube, Mr6 has a cube and a giant.
I'm surprised you didn't include pashley and brompton in your poll, but they don't make "road" bikes so maybe that's why you don't recognise them.
Locally specialized, giant and of course Carrera are the most commonly spotted bikes, but those are the "affordable " ranges offered by shops.
If you live near a Trek specialist, then that's what you'll encounter most of on your rides.