Agree and disagree. At my last job I had 6, 2008 & 2010 all installed (legacy apps, yay).

6 was amazingly responsive but sucked if you had to read/write anything (like, say, compiling). 2008 was average-slow at everything. 2010 had a go-away-&-make-a-coffee startup time that pounded the HDD, but after that was VERY fast given the complexity of the jobs it was given.

I can't believe anyone could say this with a straight face when comparing VS2010 with VS2008. 2012 is much improved and almost feels as fast as 2008.

I never used 2008, so I see why you might say that. I went from 6 -> 2005 -> 2010. 2010 is slow as a dog. 2005 is slower than 6.