I concur. Mercurial is very nice to work with and very flexible. It's sometimes a bit slower than git (mostly when cloning huge repos with binaries in them...), but it's a pleasure to work with.
I don't say that i hate other version control systems. Most of them are rather good too (well, i started with CVS, so nearly every modern version control system is a hughe improvement on that). I just like mercurial better.
And yes, all those cross-system plugins are a marvel of modern computer science. Basically, it doesn't matter what someone else uses, you can nearly always find a way to use your prefered software for your local work. So at least this point in the list doesn't merit a flamewar, since the borders between different version control systems are not really relevant anymore. Just use what you think feels best for your needs ;-)
"I know what i'm doing! Look, what could possibly go wrong? All i have to pull this lever like so, and then press this button here like ArghhhhhaaAaAAAaaagraaaAAaa!!!"