the cord isn't that annoying
plus the white controllers are actually different in their architecture, too
the triggers have a lot more buffer zone but overall seem smoother, at least until they're broken in, then they have a lot more leeway before you get the full click
the buttons seem less resistant to wear, but that also means they get broken in less easily
the analog stick is overall a little better--there's less resistance, but it's more precise and doesn't drift to one side as easily (2 of my silver controllers I can't short hop with up anymore, running upsmashes are weird, and I can't pivot in one direction with one of them)
I got my white controller about a month ago, and I'll have to see how it ages for a better analysis. Still, it's a pretty good investment, especially if you care about small technical things/easier execution.