Good analysis of methods but in my opinion best way to attempt paper is the combination of both methods
1- Don't write intro's heading just write it in first paragraph because paper usually doesn't come in way that " who is ghaznivi what you know about him " etc . so avoid writing intro heading and give him complete gist answer in first paragraph
2 - after first paragraph you have to sport your view with facts and for that make a plot in second paragraph
3- in opinion and as i experienced answer should be in heading format you could have a primary heading supported by secondary or supporting heading
4- in headings you have to write data in paragraph form
5- in last conclusive paragraph don't write conclusion as heading instead of that start paragraph with conclusive words for example
a- in short , ...............
b- crux of the................... if opinion based question
c- summarizing the topic, ..........................
hope it will help you