Back in the day, the likes of BJ Penn and Gomi were ranked highly, but I don't think they compare to the fighters of today. Here's my top 5: 1. Conor McGregor 2. Khabib Nurmagomedov 3. Tony Ferguson 4. Dustin Poirier 5. Justin Gaethje Rafael dos Anjos narrowly misses out. What's your opinion on the top 5?