I've really been enjoying my recently acquired Simpson Berkeley Best Badger. Lathers creams and soaps with ease and the brush feels great on my skin. My answer is the Simpson Berkeley Best Badger. For now...Still waiting to pull the trigger on the SOC Boar.
I'd probably choose the M&F Chief, or the M&F 2xl Heritage, or the Thater 3 band, or the Thater 2 band, or the Rudy Vey custom with Shavemac D01 3 band or the one with D01 2 band, or the Semogue SOC or the 610, or the Vie Long white horse, or the Kent BK8, or the Simpson CH2 super, or the Da Vinci 210, or the Omega B&B, or the WSP Monarch, or the SOC 2 band, or the....
Hands down the Semogue Owner's Club 2 band badger. The handle is very ergonomic and feels solid in my hand no matter how I hold the brush. The hair is stiff but has soft tips. The knot isn't too big or too small. The knot has great flow through. The knot is more fan shaped which I prefer. The handle and longer than most so the brush is good at bowl and face lathering.