Hmm, best weed? There's so many...It would have to be the stuff I've got now though. Amnesia Haze and NYC Diesal from the 'dam. The Amnesia is some of the dankest stuff I've smelled, and yet the NYC just overpowers the scent like it was nothing. Amnesia is real clean on the way down, no coughing, NYC is the complete opposite, I dare you to not cough. Amnesia is a jolt of espresso, I take 3 hits and I get antsy, need to be up and doing something. NYC is still big sativa influence, but it hits your head so hard, it causes you're brain to vibrate (not just hum or buzz). Both are incredible in their unique ways. For both, I often take two hits and forget to finish the bowl. Also recently had some Mexican Haze from the 'dam, was the spiciest weed I've ever tried, and had quite the head high on it, just not as intense as the other two listed.
Rene and Bogglegum are up there as well, both coming out of Canada. The Rene had this beautiful lemon skunk smell to it, and seemed to be more golden than green. The Bogglegum? Well, I had gone without DANK buds (beasters galore) for about 6 months, and when I got this, it blew me away. Lime, almost flourescent green buds, dusted with trichromes, an overbearing fruity taste, friend reported CEV's (though he is a non-smoker).
Cali also has some great buds, everyone raves about the Grand Daddy Purple and all the Kush strains coming out of Cali (I've had them all), but my favorite from there is a strain called Diamond Cutter coming out of the LPC Hayward. This is the only American stuff I've found that can hold a hair to the Amnesia and NYC, but still just isn't quite up there.
I don't know what it is about Dutch weed, but there's just this inherent flavoring that is in all of it, just can't put my finger on it. You just smoke it, and you know it's one of the finest weeds in the world- "classical" and "vintage" are the only two words that come to mind with Dutch buds.