As a fan of Ubuntu for last three years, awaiting its version 10.4, for its LTS (long term support) mode which in turn gives surprising features makes me more humanize:
Social integrated within the system using Gwibber so that we can enjoy twitter, face book natively.
Booting is boosted with some major tweaks for example HAL has been removed during the booting.
Though this is far from Windows 7, I like it along with Win 7.