Human

Humans are the basic "blank card" for a large amount of other kinds of creatures. Most furries use the same stance and posture as humans, and are very similar in terms of digestive tracts and sexual organs. They are capable of almost any kind of vore you can think of, from anal to genital to bellybutton.

They also aren't limited by size or other things that humans are not normally capable of doing. If the creator of the character wishes for such things as being the size of a house or having a man-eating tail, such things are only limited by the creator's imagination. Although it can be said that the same is true for all other creatures.