Since you have one criteria already "I am trying to display the top five rated comics in order from highest to lowest", you just need to add to this to order them from the most recent out of these top rated.
This is something you can do but you will need to determine what order these top rated ones were rated in. To do this you must have some more data in the records. For example, if you recorded the time of the rating as a timestamp you could organize your result set by this timestamp field in DESC. This would give you your top rated results, but ordered by the time of the review.
This is the part that you are missing though, you need to have this extra info about when the rating occurs stored for each record, otherwise you will have a very difficult time determining when the reviews occurred and what order you should list them. I think the timestamp way is the best, you can just add a column to your table to hold the timestamp. Then when you insert or update the record you just use the current timestamp for this column value.