Well i experienced both worlds i guess. the Eibachs and currently have the H&R. I absolutely loved the eibach sportlines on my E36. The ride height was perfect, not too low, and not too high. As for the H&R race, i have them on my E46 and don't know if they are any different on the E36 cars. If they are the same then i would go for the eibachs. The ride height is awsome in the front, but the rear sits too high still...well for my liking i guess. For the h&R races i think you will need the shocks changed after a while cuz the ride is more harsh than the Eibachs. If i find a good deal on coilovers..im switching my H&R's. As for the fender rolling, I dodnt do any so i can't tell you much, but from what i've heard its no big deal of a job.
Hope it helps. Unless it confused you even more.