"I think you can't beat a 155 as a daily driver. I've barely touched my 146 this year, the 155 is so much more capable."
-CK
I wish he didn't say that.
I live in the flat lands of Northern Ontario.
Guys ride a 155 here and conquer everything first shot, always looking for a harder riskier line. I ride a 146 to handycap myself in order to have a challenge and fun with the terrain available to me.
Also going through the dense, tight northern bush is way easier on a 146, as riding all the trail. Setup snow is also funner on a 146 as you get more wheelie action.
Obviously my opinion, but I feel a 146 is all about giving yourself a handcap to make the 'easy' lines fun and challenging or big air jumping it seems, Hope this helps.