Iron cub with purple cap and sabots is just insane, expecially with the Flare, all of the IB dmg skills and action skill dmg on your class mod.
While one may argue it being meta, I feel its probably the best setup for a always on iron cub build, and now that the iron bear weapons anoints have been buffed it is even more. The thing is, the forum section while being a useful source of discussion and information is not representative of the majority of the player base, as to be honest very few players actually hang out there compared to the whole bl3 player count.
On the other hand, moze has a multitude of broken setups : mindsweeper, iron bear builds, blast master, suicidal cub builds, you name it, moze has multiple ways of being broken and pure iron cub builds are among those of course because you know… Moze is Moze
As @RobCheap pointed out, IC can be crazy strong when setup correctly and used as more than just a Action Skill activator. I suspect many peeps use it exactly as a DPS companion much like Fl4k pets. I have tried both ways and had mixed results.
I do wish the AI was a bit tighter on IC. Always lags a half click back when running and gunning. Wanders off a lot when clearing large map sections normally resulting in its death. Stands and stares down some enemies rather than actually shooting. Strange little dude but when he gets to rolling he can clear a room pretty quickly.
Would love to see the math comparison of using IC for an ASE end buff vs. keeping IC up and active.
Thats how I roll and it works great, there may be a chance that cub blows itself up faster than with the cryo minigun according to some, but it still seems to last a long time and wrecks everything.