I keep my EMs mostly incandescent, but put some LEDS behind the backglass to reduce heat on some. I am really liking LEDS on the inserts of my DMD games and mixing GIs. It really makes them pop. Flashers I am leaving alone.
My house on the other hand is all incandescent, because that is what I am used to, and that is the way I like it. Which reminds me it is time to order a bunch of 75 and 100 watters before they are no more.