I bought my X4 (our first ATV) without seeing the Honda. I was actually at the dealership to look at a non-current Wolverine and my wife noticed the X4 in the showroom (love at first sight). What attracted us was the rear seating and I liked that it was on the smaller platform with the 850cc motor. I had previously taken her for rides in an AC Prowler and a Ranger - and she hated it - loud, harsh and jerky. The X4 in comparison was so quiet and smooth.
I have never driven a Honda but do have respect for the brand and quality associated with it. A few weeks after we bought theX4 I went to a Honda dealer to look at the Pioneer - my impression was that it seemed huge compared to the X4, and the rear seats were crap - like sitting on the floor - and I did climb in there to make an honest comparison. Yeah the X4 you have to twist to get into the seat but once you are there it is roomy and comfortable, and the great sight line......
So I didn't really choose the X4 over the Pioneer, however after looking at the Pioneer I was satisfied that we made the right choice for our needs. I like that 4 can comfortably sit and socialize and the X4 is so nimble and fun on the trails. The lack of tilt bed is no big deal for us.
We all need to look at our needs and buy the product that best fits them.