CrazyGamer2017 on 01 May 2018
For convenience I would say Paris cause it's the closest and easiest place to go of all 4 options for me, and by far.
London is about as close but way less easy to go to, well the High Speed Train can get me there easily but it's too expensive. Also the UK will soon exit the EU and I don't wish to spend money in a country that spits in my European face and even if I wanted to, the notion that I will soon need a passport to travel to London is a deterrent.
So if money and convenience of access were not an issue to begin with, the city that got me the most curious is Tokyo so I voted for Tokyo.
