You are asking, in fact, what is the best fixed lens rangefinder.
The only implication of the fact that you are adding "for a travel" is, to my opinion, that you will be far from home and unlikely to diggest a situation in which Your Best fixed lens rangefinder suffers a sudden trouble, or is stolen, etc - and you will be left with NO Rangefinder at all.
Therefore, for a travel, you should speak about two rangefinders, and this changes everything. Because if you take two rangefinders you can, if you want, start thinking about a labour distribution among the two, and this will dictate which rangefinders to choose. From here onwards the preferences must go back to you.
Cheers,
Ruben