But biologically we *are* apes - fact, again. The data are:
-the new world monkeys (who would never be bipedal as they evolved the prehensile tail and have 5 limbs) and old world monkeys diverged
-Later, a line of old world monkeys lost their tails entirely (we call these tailless monkeys "apes"
-Then gibbons diverged from our ancestral ape
-Then orang-utans diverged from our ancestral ape
-Then hominids diverged from the ancestral ape; these went on to split up into several lineages, one of which was ancestor to us
-Then gorillas and chimpanzees diverged from their ancestral ape, who was not ancestor to us; at about this time our ancestral hominid diverged from the rest of the hominids
-Then the chimps diverged into what we call chimps and bonobos or pygmy chimps, who are more like hominids than either chimp chimps or gorillas (frontal sex, female sexual availablity outside of estrus); at about this time our we became the only hominids around. This was about 5 million years ago.
So we are the hominid apes, but it makes no reality-based sense to refer to the other apes as Apes and call us something else.

The gibbons are the lesser apes. All the rest, us included, are the Great Apes. The great apes have interestingly different minds:
Humans watch the others, write down what they do, and write about it:
Leave a screwdriver around, and:
-The gorillas will first be afraid of it, then try to eat it, then ignore it
-The chimps will all fight over it, then whoever wins will play with it, doing everything imaginable with it except drive screws.
-The bonobos will all have sex and then all play with it, doing everything imaginable with it except drive screws.
-The orang-utans will hide it, and then when you're gone, use it to dismantle their cage.