Maxxis tyres are probably the number one downhill choice on earth right now, as advocated by an extensive list of sponsored users.
There are two DH tyres in the Maxxis range - the High Roller and the Minion. DH star Greg Minnaar favours the High Roller which, as the name suggests, has a fast rolling pattern, as well as great all-round grip. Meanwhile, the Minion comes in both front- and rear-specific designs, and is arguably grippier, although slightly slower.
DH World Champ Sam Hill rides the Minion, and he uses the front design with the new 3C casing on both ends. The 3C refers to the tyre's three compounds - a hard 70a base layer (a solid base for less knob flex) combined with Super Tacky 42a for the top rolling knobs and Slow Reezaay 40a for the shoulder knobs. The effect is a super soft compound tyre that rolls slightly better than a standard Super Tacky or Slow Reezaay, and grips brilliantly.