Quoted from herg:The 5050 SMD frosted are my goto bulb. I buy mine from Comet, but the other guys have their own 5050 bulb. Anything without the non-ghosting circuit will work best.
I'll add to this the only exception I normally make, which is for orange inserts only. For those, I like the Ablaze quads, in orange. You can dial back the brightness with the LED OCD, which leaves you with a really nice deep orange color.