The generic Abus/Abloy double-sided cylinder has been a solid performer. It has stood the test of time, but because it is in use in so many places, it would be a gold mine to someone who is able to make an easy to use picking tool for it (like bumping for pin tumbler locks, and Bic pens for some  round tumbler locks.)
No lock is unpickable, but the Abloy Protec lock (IIRC) has 11 hours as its shortest time to being picked.
The Evva MCS lock looks interesting because it would require a decoder rather than a mechanical picking tool to open. It also has an insanely high amount of different key combinations.
For springless action and the ability to work in crappy conditions, the Evva 3KS looks like a good candidate. It is a fairly simple, but pick resistant mechanism with lots of different key combinations possible.
Of course, these cylinders are expensive, but of course mass production would drive down prices. This isn't meant to replace the existing locks, but to be phased in over a period of time for better pick resistance.
: I say some. Some locks may be vulnerable to this, others are not. Saying that all