which cles to get?

Personally, I like the epi cles. However, I was disappointed in its size. It was smaller than I had anticipated, but I am able to place about 6-8 cards in it.
 
My favorite is my Charms Cles and my next favorite is my Perfo Cles. Both are discontinued, though, so I don't know if you could find either one. I'd say get a Groom or Framboise Vernis Cles.
 
Depends on what you're using it for. If it's going to need to be durable, the mono, the damier or the epi would be great. If it's mostly going to be hanging off your bag or tucked away inside, vernis, MC or a limited ed one (e.g. Groom) would be lovely !