I just recently bought a 2016 grizzly 700 EPS. had a 2013 polaris scrambler 850xp prior to this.
Build quality on the yamaha is much much better compared to the polaris. Had alot of issues with the POPO that were just unacceptable.
I like the clutching and AWD system on the popo compared to the yamaha.
The ride of the grizzly is much nicer than the polaris. Plusher, and more comfortable seating position. My scrambler seemed to corner a little better at high speed, but i think i can fix that with some suspension adjustments.
Grizzly is much more nimbler. The weight of the polaris was very noticeable.
So far i am pretty pleased.