DHF EXO front and rear or DHF EXO front and Ardent rear.
For general year round use I’ve not found anything better than a DHF for the front, I just change the rear according to conditions, Spesh Butchers are supposed to be comparible.
No doubt Shortys would give more purchase in gloopy conditions but would be a fair bit slower on dry hardpack, I’ve not used them myself but it’s prettty clear looking at the tread patterns.
Agree with stevied, didn’t get on with a HR on the rear as the ramped knobs mean they offer little when it comes to uphill traction, excellent braking performance though.