I can highly recommend Private Internet Access. They have multiple gateways across the globe, and the speed is fantastic.
Some more info from torrentfreak that may answer a few of your questions: http://torrentfreak.com/vpn-services-that-take-your-anonymity-seriously-2013-edition-130302/
Edit: Just came across this worrying article with regard to anonymity via VPN. Proxy.sh openly stated that they sniffed one of their nodes via wireshark. Makes you wonder.