The "I beam vs. H beam" discussion is 100 years old, with no answer in site. In some engines an H beam is not possible because of clearance problems to the block, cam, etc.
IIRC Larry Widmer (assuming same volume of material and cross-sectional area) prefers H beam for boosted applications (high cylinder pressure) and I beam for NA (high RPM reciprocating load).
I'm using H beam in my (30 psi?) boosted engine because... my manufacturer of choice only makes H beam for my engine.
We're 50 years into aftermarket rods, and very little science appears in the catalogs, including "rated power".

For a happy street experience:
1. build the largest engine you can afford (stock block, stroker crank, quality rods)
2. quality aluminum heads
3. everything else is fluid depending on budget and time