Intermediate spikes like Magic Mary’s or Maxxis Shorty’s are great because they work in almost anything. Good in the mud, good in the soft wet in between stuff and good in dust. Perfect front tyre if drag is an issue or you need to pedal.
Last year it didn’t rain for a week before it was hard enough to take my Mary’s off and put High Rollers on.
Are you riding bike park or natural trails.
Is it going to be pissing with rain for a week before you arrive.
Are you racing or having fun. (if you are racing & you don’t know what tyres – you are gonna lose)
100% chairlift or pedal up.
road or MTB?