My favorite broccoli is
this variety of Spigariello
It's blue. The edible region is the leafy shoot (with or without heads). Each plant typically forms 3-4' high/wide bushes with upwards of 50 harvestable heads throughout the season.
And, it's unique. Important for us, because we can get a decent price. We can't compete with large growers near the California coast, even if we wanted to grow regular broccoli.