The Fire bosses are the most enjoyable. I always do those three for my weekly on awa wiz. Nearly no waiting time, only blast. I am surprised you don't do hellfire > bolide > magma instead of hellfire > magma.
I got rid of those addons i had at the time .. but basically my strategy for addons with what i know now is as follows: High priority: Keep 100% uptime on attack/cast speed Medium priority: hp regen on hit Low priority: pve damage, some times move speed, critical hit rate (on non 100% crit skills), DR +