From what I remember reading around over the years, the difference in actual performance between the two is minimal. Neither are all that great, so why not pick the one that offers better shootability and hit probability. A good hit with a slightly less powerful round, is always better than a poor hit with a slightly more powerful one.
"If the rule you followed brought you to this,
of what use was the rule?"
“The enemy is anybody who's going to get you killed, no matter which side he is on.” - Joseph Heller