However, I have found at various semnars that many people do not know that there are numerous Buddha's in the universe and, in Mahayana Buddhism, we all have the potential to become a Buddha.
There is also the opportunity in Pure Land Buddhism to worship a Buddha, such as Amitabha, and when you die you got to his Buddha field where you learn how to gain Nirvana.
I believe that the most common misunderstanding about the Buddha is that he was a small fat bald guy. Siddartha Gautama is a different Buddha from the wee fat bald one. He is called Matreiya and is a Buddha who will come in the future.
I actually find some aspects of Buddhism very interesting. I did a presentation on Nagarjuna's philosophy of Sunyata at Uni a couple of years ago and struggled for a few weeks to understand what the concept of sunyata is! LOL