Me personally, Glacier House Revelstoke and ride Frisby/Boulder. My wife wants to go this year, and I think it's a great place to begin. But haven't rode the other areas listed.
You can get higher pressures just depends on your budget and needs. Try Landa dealers..........Hotsy likely has some higher pressure units. We rent MITM 3000 psi units and they seem to perform well.
From what I have been told recently, is snow on the lake but not much covering the trails. Rough ride.................not sure if they recieved any snow in the past couple of days.
I took mine out for it's first ride yesterday, seemed to ride decent on the trails. Was awesome in the water and snow, couldn't find much deep mud but what I did the traction was awesome. Mine has 9" wide Zillas all around and I might look at wider Zillas in the rear in the future but happy so...