Proxy or VPN? If VPN, which VPN should I consider?

I have three questions:

1. Should I go for proxy or VPN? I want to have fast, stable connection and possibility of going through different countries (mostly Europe and US, maybe extra thing will be IP of some exclusive countries).

2. If you recommend VPN, which should I consider? Market is full of VPN, when you put to the Google I have no idea which I should take.

2.a I have no idea about characteristic of good VPN, someone told me that good if I can run on dynamic IP. Any, other…

Proxy or VPN? If VPN, which VPN should I consider?