I dislike "A Novel" on any cover. Gee I am in the FFiction area of the store
Except for the Inverted Sky, IMHO this has more of a Vault feel.
The placement of the title letters gets my eye (the Not square bit).
I am right handed (but hold my book in my left

)
The Left one is just OK. It would not cause me to pass it up.
I am a fan of a cover depicting an element in/of the book.
I hate Covers that depict the characters doing something that they would NOT do (per the text inside).