I don't like the LED blinker bulbs since they blink at the same rate consistently with no variation. Incandescent bulbs don't always blink at the same rate. A might blink faster or slower, or stay lit longer or shorter. There's a lot more variability, which looks more interesting to me.
If you use LED blinker bulbs, sometimes they will cycle through and start all blinking together for a short time before falling out of sync with each other again. You don't really see that with incandescent bulbs.
If I need a blinker bulb, I'll use the older GE incandescents. The blink rate for the eiko incandescent bulbs wasn't very good...they would remain in the off state for much longer periods of time than the GE bulbs.
I'm hoping someone comes up with a good LED blinker bulb at some point that behaves more like an incandescent where the blink and light rates are more variable.
