GCC and the Kernel seem to be pretty much at "bleeding edge versions". However, I don't plan on using KDE, so that's neutral from my point of view. Programs such as Firefox, Thunderbird, XChat, they seem to be at relatively "old" versions. I have gotten used to the features of the "bleeding edge" versions of these packages.
P.S.: I am currently experimenting with Gentoo, and it's looking good so far, I might have found a winner.