Er.. I test rode it yesterday!
Hard to compare.. It's heavy, but that translates into being very stable in the corners. Don't really feel the weight though.
It's also rather quick, as the motor was brand new, I only revved to 3500rpm. But it's got torque!
The throttle is VERY light, little if any resistance. Easy to get used to, but a bit odd when starting out (I'm coming from an R1100R).
Of the Tigers, Explorer is the best, with the Tiger 1050 very close behind. 800 xc is too small and nervous. IMHO.