I've just decided to upgrade my phone and the winner is:
BQ 16 GB Aquaris X5 with Cyanogen
It's a beautiful device, but not only it is a Spanish brand and the biggest manunfacturer of phone in the EU, but because they support free software, open hardware and free culture through #bqlabs
(publishing loads of free/libre materials in the arduino/3d printing/FPGA areas). Plus it has a dual sim so I can stop fiddling with my phone each time I go home. They give me 5 years warranty.
On top of that, knowing that this is a device with Cyanogen support built-in I know I'll have not only fine grained control over the device but prolly a longer lifetime than my last two Android phones that had to go CyanogenMod at some point to keep them up to date.
Going further, given that the phone rocks a Snapdragon, once I retire the phone, who knows, I may be able to run Fedora and GNOME somehow in it :-)
If you are a free software enthusiast and BQ sells phones in your country, please consider supporting them by choosing one of their devices next.