The last one is ok, but I like thinner fonts. MS fonts are legally available on Linux (just accept the license). I know that may be blasphemy to some, but here's how fonts look on my system:

http://i.imgur.com/vBi93.png

If anyone cares:

    $ sudo apt-get install ttf-mscorefonts-installer
    $ cd /etc/fonts/conf.d
    $ sudo rm 10-hinting-slight.conf
    $ sudo ln -s ../conf.avail/10-hinting-full.conf .
    $ sudo ln -s ../conf.avail/10-sub-pixel-rgb.conf .
    $ sudo dpkg-reconfigure fontconfig