4pcT20 is worth around 1.5 AoTHG in regards to fury gen. Even then, it is, on single target, still the highest simming legendary. For a goroth kill from earlier in the week (just because I had the log handy), here are my fury gen sources for 3:22.
Note, I did have some overflow, so an argument could be made that Anger wasn't needed there, but there are still occasional empty times, and the sims suggest that it is also needed. I chalk the overflow up to user error. There was nothing really special about the parse. It was a 1.02M dps one, so not even quite an orange parse. It was just normal mode.