Upgated pump for 10 zones, 3 floor house?
GPM is more of a concern than Hp. Horse power is just an energy consumption rating. If you are controlling your zones with zone valves you may want to consider a "smart" pump like a Grundfos Alpha 2, Taco 007e or a injection mixing block. If you are using one pump per zone just a regular circulator is fine, the height is almost irrelevant. Circulators don't pump water up, system pressure does that part. Circ pumps just need to overcome the wall resistance and the pipe size/length becomes a concern.