I gotta agree... the 250s have a lot going for them, especially the new ones, especially for a 60% off road profile. I have an older Sherpa & it goes 70 on the hiway with me (230#). I rode to Dawson a few years ago with a friend that had a new WR & he pretty much kept up with my highly modded KLR (he was packed very light & I was heavy but still...). we did 75 most of the way (1000 miles). the only time he couldn't keep up was when he had to run regular gas. when we took off road excursions it was no contest.
there was a 250 shoot out in one of the magazines last month. the Yamaha came out 1st & Kawi a close second, followed by Honda.
the DRZ is nice but needs another gear. I don't think there is much advantage over the 250s. if any