http://store.apple.com/au/reviews/TW...co=MTcwNjM5NzM

Fair bit of commentary from people whom have owned both the Icon & Voyager who prefer the latter for overall quality (in/out), comfort, & battery life.
By all accts Voyager's noise suppression isn't quite as good, but very close.

So for now it's the Voyager, later I may also get the Icon, or one of the others in the "OUT" list.
Order of priority in that list is from top-to-bottom....