I have noticed one major flaw with the Kindle that Kobo does not have.
With the Kindle, if you have some embedded fonts, but the body font is not embedded, you cannot have your choice of body font and still be able to see the embedded fonts. A good example of this is
The Wind in the Willows from
here (MR). Can anyone get their own choice of body font and the embedded fonts to display on a Kindle (no embedding the body font as that's cheating).
I can get my choice of body font and the embedded fonts to display with my Kobo.