I agree with Brothman ASVhost.com and Hosting.uk are really good ones. Also, if you are interested to look for more, I've found an unexpectedly great partner situated in Lithuania. They are Time4VPS.com. One of the best client supports I've encountered. Also, check out InMotion hosting, I've read many good reviews about them, especially related to Wordpress-friendly hosting.
What friendly you are expecting? Could you tell me more?
It depends on your requirements, if friendly means for ready to fly environment for your WordPress site, basically any VPSes with control panel such as WHM/cPanel (paid) is what you're looking for.
But, if your friendly is referring for performance, there are many VPS providers worth to try.
Our Cloud Server VPS have a one click Wordpress installation. Once you launch the server you will instantly receive your Wordpress admin credentials and url with no database or files setup. Everything is setup automatically for you. Just select Choose OS: Application > Wordpress on Ubuntu and activate your server. Get a Cloud VPS with 25GB SSD / 1 CPU / 1 GB Memory / 1 TB Bandwidth for only $10/mo.
If you need good Windows VPS hosting, can highly recommend Hostnamaste.com provider and their servers in India, Europe and USA.
I've recommended them to several people who now also use them and are impressed with their uptime and website speeds.