Arabba is popular as:
a. It is on a road junction. This is important in any mountains (and indeed a lot of other places too) as it gives choices as to which way to head out.
b. As it is on a junction, hotels build up. More hotels, more choice.
c. It is reasonably central in the Dolomites.
It is by no means the only town or village you might chose.
re. the concern over snow and height. I don’t think you have told us when you plan on going? If Arabba has snow, the region as a whole might have snow; that’ll maybe scupper your plans for two days in the Dolomites, no matter where you stay.
a. It is on a road junction. This is important in any mountains (and indeed a lot of other places too) as it gives choices as to which way to head out.
b. As it is on a junction, hotels build up. More hotels, more choice.
c. It is reasonably central in the Dolomites.
It is by no means the only town or village you might chose.
re. the concern over snow and height. I don’t think you have told us when you plan on going? If Arabba has snow, the region as a whole might have snow; that’ll maybe scupper your plans for two days in the Dolomites, no matter where you stay.