Ideas and advice for editions needed

I had been looking at the sorry state of my AC collection these days: in 3 languages, in all type of formats and some of the books in a really bad state (bought like this mainly in my first years away from home when the idea was to buy as many books as I can for as little money as I can).

So it is about time for an upgrade. I am trying to get all in the same style (preferably hardcovers). The ones I had been looking at are:

1. The paperback HarperCollins ones (they did it a few times actually - the ones with the list of the series at the back of the book and on the non-series ones, the list of all non-series works) - like this one http://www.harpercollins.ca/books/9780007120994/Hickory_Dickory_Dock/index.aspx

Even if I prefer hardcovers, these are the same at least :)

2. The Facsimile editions (HarperCollins again) like this one: http://www.harpercollins.com.au/book/index.aspx?isbn=9780007234509

3. Black Dog & Leventhal Publishers hardcovers: http://www.workman.com/products/9781579127312/

Any other possibility? Any recommendations between 2 and 3?

I think that the facsimile firsts are delightful although my personal inclination is towards the Fontana paperbacks of the 1960s and 1970s because those were how I first read most of them.

Oh, I do not think I will ever get rid of my Abagar paperbacks (they published most of the Poirots and Miss Marples in the90s here) and that's one of the first series I was buying when I could afford them. :) I just want to get them all in English and in hardcover if I can :)

Guess I will just order one of the facsimile ones and see how I like it.

Thanks for taking the time to answer :)