LoveUniHateExams : A 400lb lardass will always whup a skinny Jewish carpenter, hands down .
OK, (Grin) but.
but SOME Buddhist sites say that the 'happy' Buddha figure does not represent Buddha at all -

One site says:
Happy Buddha / Ho Tai / Prosperity Buddha
Ho Tai, as he is called in Chinese, is often confused with the Historical Buddha. But a word to the wise; Ho Tai is not the Buddha at all, but is actually a revered Chinese Monk. He is somewhat akin to the West's Santa Claus / St. Nick, since Ho Tai was famous for his Buddhist sermons and for his bag full of gifts, which he brought to children in order to reward them for coming to learn about the Dharma.
Whether that's the view of all Buddhists is a matter for discussion (which would bore me).
For the first few hundred years of historical Buddhism, there seem to have been few, if any, images of the Buddha. The first images seem to have been developed in the Greek Kingdoms in what is now Afghanistan.
And, because there are no original representations, each 'brand' of Buddhism developed its own 'culture.' (Just like Christianity)
Here's a typical Thai representation.

This is a Thai Contemplation Buddha: The Contemplation Buddha signifies quiet determination and patient understanding.
And, I think its fair to say that a muscular carpenter (Jesus) would likely beat a contemplative man, (from a wealthy family) in a fight. That is, unless we are talking about warrior Buddhist traditions, like the Shaolin tradition in China.
https://www.youtube.com/watch?v=iE5YifCsrXw
And with determined practise, Buddhists can even RUN on water (Well, sort of).
https://www.youtube.com/watch?v=YrncG8NvZJI
But there's even more complexity, because there is more than one Buddha. Some sources suggest as many as 28. And, of course, in Buddhist teachings, we can all attain Nirvana and become Buddha.
All nonsense, of course, but nicer nonsense than having your head sliced off by a vengeful Jesus.