It would be most helpful to consider both characters´ reactions to the suitors.
Penelope, during Odysseus´ absence, has grown meticulous, calculative, and above all, precautious —as it is most famously depicted in her supposed weaving of a burial shroud for Odysseus´ father, a task that allows her to postpone making a decision as to which suitor she would choose. Odysseus, on the other hand, having returned from his long journey, is still a very ingenious character, the trait that most clearly characterizes him —in this instance, he disguises himself as a beggar in order to be able to plot his revenge—, but this time it is rage and fury that dominate him —this part of the Odyssey, book, 22, is very likely the most violent book in the whole of Homer´s Epic— as he slays the suitors.