I have the Emperor 3 Super as well. It’s OK, but is overpriced for what it is. The E3 knot doesn’t really excite me. I reach for my Tulip 3 Super much more often.I've got a Chubby 1, a Chubby 2, an Eagle G3, an M7, and an Emperor 3 in Super. The Eagle, M7, and Chubby 1 are used all the time. The Chubby 2 only gets used 3-4 times a year, when the mood for a huge soft brush is on me. I can't remember the last time I used the Emperor. It isn't dense enough for me, although many love their Emperors.
I think a M7 in any badger knot beats my E3 Super every time for face feel, lathering, etc. It is the perfect sized knot for me.