Definative Answers: VS08 vs VS10 & perl 5.10 vs 5.12 vs 5.14

[Irreverent]

Ok, I've read a LOT of differnet posts about using 5.10, 5.12, and 5.14 as well as related to VS2008 vs. VS2010. But, what is the truth behind it all?

I'd like to put a definative answer for me, but also for every other server op who has the same question. (Maybe its only me?!)

Questions if anyone can answer with facts: (I or forum op can update this as facts come in)

08 vs 10
-What is the advantages/disadvantages of each? (better memory handling, smoother runtimes, etc)
-What parts of the EMU do or don't work? (or verify all do)
-Any compile issues between version or trunks?
-What are some of the best changes to the compiler beyond default install?
-Better/worse on linux vs. Win?
-x64 vs x86

10 vs. 12 vs. 14
-What is the advantages/disadvantages of each? (better memory handling, smoother runtimes, etc)
-What parts of the EMU do or don't work? (like queryserv requires 12 and therfore lfguild doesn't work)
-Any issues with compiling in 08 vs 10?