I ran h&r because i cam from a VW background, (more european car owners prefer h&r over eibach). Eibach seems to be a perfectly fine spring, and tends to be more common / popular among asian market car owners. BOTH are proven companies.

I can't remember the specs of either off hand, but imho i would go for the one you can find cheapest. MOSTLY if the price difference is significant enough to matter. I loved my h&r's, but wanted to go lower.