Doober, this is a pretty brave thing to do based on how ugly these posts can get sometimes. Good for you for doing it anyway.
I like you shopped the field and to be honest, I didn't plan on being a Cat this time around. I have had plenty of Skidoo's, Yamaha's Exciters, MSRX, and I rode an RX-1M for 7 seasons. I like you, liked it but, it was time for something lighter. That's when I bought my M8. So, Cat has been checked off the manufacturers list as well. The only one I haven't had is a Polaris and the 417 dry weight of the Polaris really had me. In fact, I was working several deals on 2015 Terrain Domination sleds but, the deals just didn't work out. The only thing that scares me on the Polaris is the pre AXYS 800 motors. The 600 RMKs are great and why they dropped the 700, who knows. With the new AXYS chassis and their new 800 engine, the Polaris is going to be an awesome sled moving forward. I will have one someday but, I will let other be the new sled guinea pigs this time around. I really didn't consider a Skidoo XM this time around and I can't tell you why. They are great sleds. The Yamaha, I still love them. I so WISH they would use their direct injection two stroke technology from their outboards in their sleds. I don't feel like I left Yamaha, I feel like they left Yamaha mountain riders high and dry. Not everyone wants to ride a comparatively heavy boosted sled.
The best advice I can give you is, get the sled that when you go into your garage and turn on the light, it makes your heart go pitter patter and makes you say yah, oh yeah, I got the right one!
Of course, your relationship with the dealers in your area are very important as well. if there is a dealer that has always stood behind you and taken care of you. Stick with them and buy whatever brand they sell. There's just not that much difference in sleds to justify buying from a bad dealer or a sled that has no dealer for 250 miles.
Best of luck to you!