In reply to J_Trottet:
Blah blah blah recommendations, blah, blah, blah following random advice, blah blah blah same thing I've said a million times.
Now once i've got that out of the way. Ignore everything else and go to a good bootfitter and tell him what you want. Listen to what he says and then buy what he recommends following a proper boot fitting session. Expect this to take in order of 2+ hours depending on how awkward your feet are. Everything else is irrelevant, including your sense of comfort trying them on without GOOD professional guidance.