When it comes to buying clothes for yourself, quality trumps over everything. But when you want to show off to the ladies which brand has the "wow" factor? Ladies don't have as much knowledge on men's brand compare to people in this forum. So something like Emporio Armani will probably impress them more than Brioni, which they've never heard of. But among the ones girls know, which one impresses them the most?
And let's not get off topic about the importance of brand or whether you should dress for yourself or for others. I want to know the brand that most likely will make the girl think "this guy is the shiz"