I have had both. Actually I have had three double yellow heads, two males and a female. And I now have an eleven year old female eclectus.
The male DYH's were loud, good talkers and funny as all get out. One talked a blue streak and was pretty calm til he hit maturity at age three. Then he became a terror. That stinker would jump off his cage to come after me.
The other male was only handleable by a two year old girl. Her daddy had leukemia and they were told to get all animals out of the house or their doctor's care would stop. Of course they had to sell him. The young man died within a couple of months. Anyway, I could never handle him due to his fear of all adults. He was a beauty, though.
My female DYH, was even more beautiful. Her yellow extended all the way down onto her shoulders. My cousin has her now. She was a good natured bird but never seemed comfortable with me. She is calm and happy with my cousin and even goes on camping trips with them in a motor home.
My eclectus has been with me since she was 9 weeks old, handfed for a year, because we both loved that time together. She has been very calm except when in hormone mood. She can bite like a razor blade. I use a stick to pick her up for about a month when she is in her cranky mood. She's severely plucked, completely naked on her body, and her wings and tail are shredded. She's healthy now and happy, just likes to yank those feathers out. She was critically ill for a couple of years when she was very young. She's been naked for at least 7 years, maybe longer.
I think the ekkies are lots easier but we have amazon people here who think theirs are wonderful.
They certainly are gorgeous and usually are good talkers.
Annie