Best Lutz by ladies? Julia Sebestyen's and Midori Ito's!!!
Well picking in with your dominant foot gives a lot of height, and what makes lutzes generally bigger than flips is that you're on your outside edge (hopefully) and that gives you more stability. That's why a lot of men lip.
many people think that technique on a lutz is about how far back you pick and that's where most of the power comes from, but really keeping a close pick, shoulders and hips level and square, and snappy hips is what gets you the height. this is what yuna is good at, she keeps everything tight. here's an example, the far back pick is one problem alissa had on her lutz... take a look here http://www.youtube.com/watch?v=jLVnCwvTsvc in the first video her shoulders and hips are open and her pick is way, way far back causing her to have more of a wrap in the air. because of her shoulders and hips being open, she fell and was short of rotation.
here yuna talks in detail about her lutz-toe technique http://www.youtube.com/watch?v=dNPo-rlPZrc
I don't know who had/has the best lutz technically, but if you're saying spectacular from an audience viewpoint, my vote goes to Midori Ito!
Yuna also majorly telegraphs into her triple lutz(-triple toe)
Of the top tier skaters (i.e. world medalists)
1. Tonya = Midori. I just love their explosive lutzes.
2. Yuna = Carolina. Carolina has better flow out, Yuna has better transitions in. Both lutzes are big, and cover a large distance. Both regularly get +2 and +3 for a reason.
3. Miki = Shizuka, -1 GOE below Yuna and Carolina. These two are next in line for best lutz. I prefer Shiz's lutz to Miki's, but Miki's lutz is textbook, there is nothing wrong with it, and she does it so well, it's like any old double jump. Shizuka is more inconsistent, but her flow out of her lutz is one of the best.
The others like Baiul, Chen, their lutzes were nice, but Baiul always double footed, and no flow out, Chen underrotated her lutzes a lot. I think theirs are just passable. They aren't very remarkable to me. Most of the time, I would give 0 or -1 to their lutzes.
Group 1 would get +3
Group 2 would get +2 and +3
Group 3 would get +2