I've tried many cases but always dissatisfied with all of them, ended up go back to Apple leather case for my 6.
Only problem the leather case has, it started to stain other color on it after few months of use(except color black one)
You might think of trying the leather cases from Levenger. I'd guess theirs will be a better quality of leather, plus, because of their customer service policies, if their case begins to fade, you can probably get a free replacement.