Great post and comparison. I'd like to see an MLC comparison too. As stated above, KS has some issues (with armor and lids), but can be dealt with accordingly. I picked up a KS helmet (built) like you and then modified it (heavily) to make it better. In the end, I sold it and got an MLC - which I love.
KS makes decent stuff, just need to update/fix their molds a bit.
This was my KS: