ground control coilover VS Espelir springs VS tein Springs(heard its not quite good)

which one handles better?
which one is more comfortable?(not bummpy)
any pics of the Espelir springs on the car?

my car currently have ground contol coilover lowered to the ground.
its too low for me and gonna raise it back a little.
anyone knows about how much will be a set of used ground control coilever?


thx a lot