How burly do you want to get with your descending and how painless do you want your ascending to be?
All that being said if you're leaning towards a Stumpjumper I'd recommend you have a look at YT Industries Jeffsy models. They're infinitely better specced than almost any of their competitors bikes for the price.
It really depends on what you intend to ride...
Do you want 27.5 or 29 wheels?
Do you want a hardtail or full suspension?
Do you want a dropper post? (You do.)
How burly do you want to get with your descending and how painless do you want your ascending to be?
All that being said if you're leaning towards a Stumpjumper I'd recommend you have a look at YT Industries Jeffsy models. They're infinitely better specced than almost any of their competitors bikes for the price.