Personally, I think the UK should definately stay. Although we pay very high membership fees (though a tiny fraction of the total budget), I believe the benefits of EU membership far outnumber the drawbacks. For example:
- Free movement of goods within the EU, facilitating trade;
- Student exchange programs, which I have taken part in;
- EU membership vastly increases the UK's influence on the world stage;
- Most immigration into the UK is from outside the EU, which would not change after a UK exit;
- British citizens living or working abroad may be forced to return home