I used to be under the impression that Medieval Western European mail and Islamic/Oriental mail were virtually identical, however I recently received a gentle rap on the knuckle on another forum (which shall remain nameless and linkless

) for daring to suggest this.
The consensus on that forum was that European mail was superior. This is probably true up to a point, there is an article on The Wallace Collection's website which suggests that there was a lot of variability in post-17th century Indian mail and that a lot of it was inferior to Western European mail. However I will cling to my belief that Ottoman and Mamluk mail at least was equal in quality to most Western European mail.
Link to that Wallace Museum article:
http://www.wallacecollection.org/i_s...truction.htm#1