I have Onyx Boox Darwin 4 with hi-res display (6" at 1448x1072). I'm happy with it after 3 previous e-books: sharp display, built-in light, touch, stock android with Google Play, 2 cores, 8GB flash. The only misfortune is lack of my native language in UI.

I looking at new Onyx Boox, which was just released: https://www.youtube.com/watch?v=1huyi7mgbzY . IMHO, it is much better than any Kobo on the market right now.