Eh, I could live without compiling... If Gentoo were to go binary only with portage, I wouldn't mind.
The init system is nice, but I was doing fine before. New packages are nice as well but I don't run unstable, so by the time I have installed something new, so has every other distro user. I'm x86 so arch doesn't matter. What is tweakability? I can tweak any distro... I think. I ain't a console purist, I'll use a gui if one is provided so livecd and all that didn't matter.
Portage is the only reason I use it. After a fresh install, type emerge kde, and all of a sudden you see 100+ dependancies install for you. I don't have time to figure out all those dependancies... that's what a computer is for. Portage does all the grunt work, I just continue doing whatever it was I was doing...
I voted for simplicity because despite the reputation, gentoo is the easiest distro I have ever used, installed and maintained.
There was a saying going around a while ago, "Came for the hype, stayed for portage." ... or something to that effect. That's basically my thoughts on Gentoo's Greatest Feature
