00:29 - The Bible does not say that these three types of angels are "interchangeable in rank".
01:28 - The Bible does not specifically say that Lucifer was the most powerful created being. He might be, but Michael or some other angel might be, as well. Lucifer was a guardian cherub before his fall (Ezekiel 28:14).
01:52 - At the time I made this video I had a traditional, but mistaken view of when the War in Heaven takes place. My current Scriptural understanding is that the War in Heaven and satan and his angels being cast out has not yet happened. It will happen during the future tribulation period. This can be plainly seen in a literal reading of Revelation 12:1-12.