Thats too many questions! Lock this damn thread now!
I have Eibachs wish I had H&R raked stance look better IMHO, H&R is porggres throughout, front and rear working Eibachs rear are linear, one set rate.
Bonus side is Eibachs are said to be designed to work with stock strut, which mine have done pretty god job of. If I did it over H&R for looks.
Both are about the same.