Quite simply Futura Medium. If I had to guess which Futura Medium, I would suggest the rendering by Neufville Digital as a likely candidate.

Duh... Now that we’re on the topic, which rendering of Futura is the best?

A lot of people seem to like Bitstream’s version, which is what I use (simply because it comes with CorelDraw, not out of any allegiance to Bitstream).

LTC’s Twentieth Century comes with Renner’s original alternates, as does Architype Renner if you’re into that sort of thing.

- Lex

As far as what’s the best version of Futura, Futura Serie without a doubt. It has small-caps and old-style figures.