I've heard many great things about them both. And, those that ride them swear that they are the best. So all the info seems biased. I curently have an 05 yz450 and a 2000 yz250. I like them both, the smoker seems to be quite abit better in the woods and recently tried it at the track and felt that I was able to carry more speed through the corners. This allows me to clear jumps with less effort (motor effort) than is needed on the 450. But the 2000 250 is quite a bit behind the 06/07 models as is my 05 450.. I do realy like the 450 power and much less shifting that it requires. My question is really this; how do the new (06/07) smoker and the 450 compare to each other, in terms of handling? I do about 50/50 woods/MX.