Maybe I'm alone in this, but I really DO NOT like LED brake lights (or indicators for that matter).
There's something about the suddenness of them coming on that I find irritating and distracting.
As for indicators, the colour of most LED ones is rubbish and it's usually an excuse to make some "clever" design where they're mixed in with rear/brake lights so actually less visible.
And the softer "pulsing" of traditional filament bulbs is I think more visually obvious anyway.
And don't get me going on front indicators that aren't on the corner of the car and visible through a wide arc; how they pass the regulations when integrated into a cluster INBOARD of the headlights escapes logic.
[/rant]