Aluminum rods are strong and light (and good at absorbing shock)
but historically don't have the duty cycle rating for regular street
use that a good set of steel rods do.
The Eagle or Scat rods are more than strong enough for most any
real-world application. Probably as good as anything.
If you are building your once-in-a-lifetime screamer/keeper then get a
premium set of steel rods from Oliver or Carrillo.
www.oliverconnectingrods.com
www.cp-carrillo.com