Leona players, report!

I recently started looking for Leona data, and i found out that my masteries, skill max order, build and also runes were all different than what most played. Not sure why, so id like to know your opinion on this matter.

Here is my page so people can look: http://na.op.gg/summoner/mastery/userName=Irasiel

If you don't want to look, i basically go 0/24/6 with my masteries, while it is either 0/9/21 or 0/16/14 that is ran. For runes i run %Ms quints while most run flat armor quints. For skills i usually go the q then E then max W like the others, but after i max e before q, while its in reverse for the others. For the build its mainly boots choice that differs, i use tenacity instead of mobility boots.

Why would that be wrong/why are most players running like i said/what are some other things you guys run?