Arthur Jefferson's 5 syllables (2 + 3) hit the Hollywood sweet spot.
Arthur's 2 beats vs. Jefferson's 3 create a natural cinematic snap.
Arthur Jefferson's softer consonants cost it screen presence.
Arthur Jefferson misses the alliteration hook that makes names stick.
Arthur (6 letters) and Jefferson (9) have a slight length mismatch, but it reads fine on screen.
Arthur Jefferson has mostly familiar phonemes with a few tricky patterns.
Arthur Jefferson has decent vowel richness, but stronger A and O sounds would lift it.