For me one of the advantages with Kobo is the many possibilities of adjustments in the reader program. But if you don't want to use that, you would need to install koreader/coolreader on the Kobo, and then it seems you may as well get a Pocketbook since it's easier to installer it, and you can use folders with the built in reader program as well.
(I would go for the new Touch HD 3 though...
)
If you tend to drop things, I would get a larger sleeve to put outside the reader with the cover on. (Not while you're reading...)