With my car being a daily driver I personally like using factory parts that are widely available when replacement is needed. I've heard people using Dodge Intrepid fans, Ford Taurus, etc.
On my car I'm using the GM f-body alum radiator with the plastic tanks and the factory dual fans. Many look down on these rads because of the plastic tanks. I figure if GM trusted them who am I to doubt. If it ever does go bad, I may get the Summit direct replacement alum rad for $289.95. Same situation on the electric fans. I've never had one go bad (and I bought them used too) along with the upper mounting and it was an easy mod to bolt to my radiator support. If they ever need replaced, I may look into either the Ford or Dodge setups.