Nasa and ESA have decided...
(no doubt firmly infuenced by our poll
11:9)
...and the winner is...
Europa!
Actually plans are to send
two orbiters: the NASA made one will explore Europa, the ESA made one will explore Ganymede. Planned launch date is 2020, with ETA of 2026.
A mission to Titan is likely to go ahead after that, but more time is needed to plan it.
More here:
http://www.nature.com/news/2009/0902.../4571070d.html
Al.