Since sub-metagames don't exist right now (no UU, no NU), directly outclassed sets are frowned upon.
Also, you have SEVERE slashitis here. With three different moves in each of the last two slots and THREE natures when that can't possibly be necessary, in addition to ridiculous move choices such as Fake Tears on sets without any Special Attacks and Wish on something that can't survive a light tap. The wish set is a 100% inferior Lickitung, the lead set is a 100% inferior Glameow.
In addition, the writing is extremely poor and every set is going to be a bad version of another Pokemon. I appreciate your wanting to contribute, but a Skitty analysis is probably not the way to do so.