There's an editorial in tomorrow's Financial Time (which I am reading online at 3am) and it puts the remain case fantastically well, and covers all the points in a way that no one has so far.
The FT is behind a paywall but if you google the title of the article "Britain should vote to stay in the European Union FT" and click straight through from the google hit then you should be able to read the article without signing up.
Otherwise, here is the link:
www.ft.com/cms/s/2/3748166e-3151-11e6-ad39-3fee5ffe5b5b.html