Final answer:
The most appropriate aspect of analysis for this excerpt from act I scene I of Shakespeare's Richard III would be drama analysis.
Step-by-step explanation:
The most appropriate aspect of analysis for this excerpt from act I scene I of Shakespeare's Richard III would be drama analysis. This analysis focuses on the elements of drama, such as characterization, dialogue, setting, and structure, to understand the deeper meaning and dramatic techniques used in the text. In this excerpt, the analysis could include examining the use of soliloquies, the tone of the language, and the characterization of the main characters.