leaderboards

The top players: by level, kills, bosses, bounties and more.

Usage:
  leaderboards
  leaderboards <board>

On its own: the leader of every board, and where you stand. With a
board's name: its top ten. Boards: level, kills, elites, bosses,
bounties, pvp, credits, achievements, explorer, playtime.
They're worked out every few minutes. Staff aren't on them.

Examples:
  leaderboards
  leaderboards kills
  top bounties