I like the first one the best, though I think the title needs to stand out more. Also, the red bars up front, they're almost in the way. But I suppose if you took them away I might think that something was missing. Hmmm, best of luck with it which ever you decide.
Exactly what I was going to say - 1st one and bigger, bolder font for title. I didn't notice the red bars until I read Michael's comment. Here is a post from Jane Freidman about book covers, http://blog.writersdigest.com/norules/2011/02/17/10TipsForEffectiveBookCovers.aspxShe gives great writing advice, does seminars and webinars, etc.