Final answer:
Both Odysseus and Polyphemus from Greek mythology display significant strength in their respective narratives, which is the characteristic they share.
Step-by-step explanation:
The similarities between Odysseus and Polyphemus described in Greek mythology and literature, notably in Homer's Odyssey, include both characters exhibiting significant strength. Odysseus demonstrates his mental and physical strength through his various exploits, including the devising of the wooden horse in the Trojan War and enduring a long journey home filled with challenges. Polyphemus, the Cyclops, displays his strength in more literal terms through his immense size and physical power. Neither character is particularly noted for wisdom, beauty, or deception to the same extent as their clear expressions of strength.