MLB.com

Does a home run count more than 4 singles?

No, in fact 4 singles is actually better. Even though the total bases are the same, the 4 singles produce a slightly better raw score in the Scorecard formula. This happens because the number of runners on base increases the likelihood of more runs being scored. A home run results in 1 run whereas a team that hits 4 straight singles will probably score 2 runs.