Need of advice to choose my first sled

Hello guys&girls,
I am on the way to buy myself my first sled (used of course....) and after looking what's on the market around me, I'm going to choose one from these two :
https://www.snowmobile.com/specs/pol...144-inch-.html
https://www.snowmobile.com/specs/ski...-800-h-o-.html

My main griteria are:
-reliability;
-maintenance costs and spare parts;
- Fuel economy.
Since I am not experienced sledder, the both would be powerful enough for me....
The Polaris has only pull start and the ski-doo has pull&electric.
The height class of the Polaris is low and the height class of the ski-doo ist middle. Does this means the ski-doo has better maneuvering?
Тhank you in advance for your help!

Need of advice to choose my first sled