1.) I was addressing PES who seemed unsure whether or not all of Europe used PR.
Hi Epi. The reason for my question mark was that I was working from memory and couldn't confidently say that every EU-country except the UK operated a proportional system. However, I've just done a quick check and the systems in use for parliamentary elections across the EU are as follows:
Austria - PR with preferential vote, 4% threshold
Belgium - PR with preferential vote
Bulgaria - PR with closed list, 4% threshold
Cyprus - PR with preferential vote
Czech Republic - PR with preferential vote
Denmark - PR with preferential vote
Estonia - PR
Finland - PR with preferential vote
France - Second Ballot Majority Runoff
Germany - Mixed Member Proportional system
Greece - PR with preferential vote
Hungary - Mixed Member Proportional system
Ireland - PR Single Transferable Vote
Italy - PR system with additional members
Latvia - PR with preferential voting
Lithuania - Additional Member system
Luxembourg - PR with vote-splitting
Malta - Single Transferable Vote
Netherlands - PR with closed lists
Poland - PR with closed lists, 5-8% thresholds
Portugal - PR with closed lists
Romania - PR with closed lists, 3% threshold
Slovak Republic - PR with closed lists
Slovenia - PR with preferential vote
Spain - Additional Member system
Sweden - PR with closed lists
United Kingdom - Simple Majority Vote (First Past The Post)
Every EU country uses a PR system or, in the case of Germany, Hungary and France, a hybrid proportional or elimination system. Only the UK uses a simple majority system like the US.
Interestingly, the UK abandoned FPTP for elections to the European Parliament a few years ago and uses a PR, multi-member list system for these elections instead.