I fully agree with your needs. If you want to spend the money the Arai Tour-X4 is very popular and excellent quality.
Personally I use the Airoh S5 which is very good value for money. I like the flip down internal dark visor. The peak also folds down for fitting into small topbox. Fairly quiet compared to previous helmets I've had.
But the ultimate decision should lie with how comfortable it fits you.

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2014 XT660Z - Barrett pipe, DNA stage1.5, Barkbuster hand guards and handlebars, Pivot pegs, Teknik suspension, Guard-it engine protector combo, B&B rear rack, Trax topbox.