I guess it depends on what you define a "perfect" baby. I thought my first was perfect and she was... too perfect - she slept well, rarely fussed, was happy to sit or lie down and play with her own hands or even her bib for ages. It ended up that was because she had an under-responsive vestibular and proprioceptive system that caused major delays and still effect her greatly. My second is more wakeful, chucks little tantrums when he doesn't like something, pukes up because he's rolling around and putting pressure on his tummy as he explores, and squeals like a banchee just to hear his own voice and I think it is wonderful! Well, maybe not the squealing, some days that does my head in because it's so loud and high, but it's his happy attention noise. My DD is perfectly unique and DS is perfectly normal - both are perfect.

I guess my point is, that what can be seen as a negative in a babies behaviour, if not caused by something physically wrong but personality, can also be their greatest strength. Likewise what can be seen as good behaviour might actually be an indication of that child's weakness. Does that make sense? A baby might chuck tanties because they are strong willed, while this doesn't make them an easy baby, it will hold them in good stead as teenagers when they''re dealing with peer pressure. It's all about how those traits are steered more than whether or not one is right or wrong.