I have lived under the illusion that there is nothing better, nothing more regular than Miyuki in seed beads. But now that I have been Toho-ized, Toho seedbeads get my big thumbs up as far as their round seed beads are concerned.
As you can see from the photo below, Toho round seed beads produce the best results.

Toho seed beads size to size, seems to be a tat larger (but much more regular) than Miyuki’s round seed beads. For example, a Toho size 11/0 seems a tat larger than a Miyuki size 11/0. (But I still combine them in my works.)
The difference that makes the real difference is that Toho seed beads end up being much more regular with minimal wastage. And Toho round seed beads feel better to work with. It may be my imagination, but I also find that the holes in the Toho round seed beads have nicer rounded edges and are nice and large.
Of course I still love my Miyuki round seed beads but dollar for dollar, I would be more likely to buy Toho round seed beads in future.
Miyuki Delica vs Toho Treasures
Miyuki’s cylinder bead is called Delica.
Toho’s cylinder bead is called Treasures.
The cylinder seed bead is like a tiny cylinder tube. It is highly loved for bead looming and square stitch and for producing a flater, neater, bead woven surface.
I don’t have any experience with Treasures to be able to do a comparison. I do love my Delicas. However from what I have found in my Google research, there is very little difference in the final look and outcome. In fact, it is said that you can use Treasure and Delica interchangeably.
However there is nothing like personal experience and I am sure that one day, I will be irresistibly tempted into buying a lot of Treasures! 😀