If you are buying from Bullgoose, then I would recommend the Vie-Long Lord Randal in white horse hair. It's a nice all-around brush and a BG exclusive.
I like Vie-Long horse hair brushes, but the knot tends to clump up when wet compared to boars and badgers. To mitigate this, I would suggest dunking the horse hair knot into a vessel containing standing water for around 45 seconds just prior to shaving, rather than soaking, then shake it off lightly and load from the puck or cream in the bowl, adding small splashes of water to build the lather as you go. Not my favorite knot for face-lathering, but the lather can be built from the puck in a bowl for sure. Go gentle with it, though, as horse hair knots are alleged to form a whole in the center if too much pressure has been applied (I'd love to see a picture actually illustrating this).
I find the 50/50 (white or bleached and striped) mane to tail ratio to be preferable on the skin to the 35/65 (brown hair) mane to tail ratio. Strictly bowl-lathering and painting on the lather, the 35/65 ration is fine though.
Vie Long Horse Hair