Which Version of Inventor to use?

[bardd]

Personally, I used Inventor Professional 2012 for two years or so, and liked it a whole lot, despite it having some annoying perks. I recently formatted my computer and took the opportunity to move to 2013's version. I find it marginally easier to use, but it does a lot more of freezing and crashing.

[cgmv123]

We've upgraded most of our personal and team computers to 2014.