Beauty is in the eye of the beholder, and the desire of certain vintage machines is similar.
Some would die for one of those big ugly beasts, the 31. While others would argue that the machine to own is the cute FWs. Some only look at Singers, while others covet the Lady Kenmores or the Necchi. When it comes down to what is best, it really is what makes one happy. And in the end, we are just the steward of what is now mechanic art.