i actually looked into different types of deer semirecently for character names! but even then, my favorite would probably just have to be the kind that wandered around in my backyard when i was younger.
and if we count fantasy deer than it's gotta be giant majestic elegant forest spirit deer. ESPECIALLY if they have a weird situation going on with their physiology (like skull head and wisps at the tips of the antlers, for a completely random example)