Aztec and Inca? who was more impressive?

Which civilization was more impressive, Aztec or Inca?
Your essay should have a clear introduction with a strong thesis statement. Body paragraphs must begin with a topic sentence that establishes the focus of that paragraph as it relates to the overall thesis of the essay.
Your essay should be formatted according to MLA guidelines, and include a Works Cited page at the end (not included in the page count).
Within the essay you should have a clear thesis statement in the introductory paragraph and should include support from your research in the body paragraphs. All information used from research must be documented using appropriate MLA parenthetical reference to the sources listed on the Works Cited page.