You got some good info from Moe, Kno4te, Travis and Experiment but I'm always happy to add my experiences, hope it helps.
I've never personally kept Torosus but from what I've read they aren't particularly fast growing cats; not really surprising considering their max size. I've also read that they do well with boisterous tankmates as they can be aggressive themselves. Though not overly so and usually only defend their hide. Though at night I've heard they may cause issue with other bottom dwellers and Cichlids learn to avoid the bottom at night due to the activity. I've also read that they aren't as active as Macropterus in general but also aren't big hiders even when at rest. When underway though these guys are supposed to be fast and during feedings are exceptionally bold chasing other fish trying to snatch food out of their tankmates mouths. A habit I observed in my Macro's. I've also read that they are less timid then Macropterus and therefore more responsive to their owners. Lastly I read that they tend to be fragile at smaller sizes which is probably one of the reasons we don't see these awesome cats often. Again that's just what I've read, I have no personal experiences.
Macropterus however I have kept and they are great cats as well. Mine weren't timid as I heard them described. Never darty unless looking for food and I had to shoo them away when cleaning the tank so they had no aversion to my hand being in the tank and very close to them. Though I never handfed them, something i did accomplish with many of my cats but I also didn't really try with the Macro either. IME growth rate was scary fast. Fastest growing fish I ever had where RedTails, Pacus, Granulosus and my Macros. At least till the Macros hit around 12 inches. They're very active IME and I've never personally seen them act aggressive except during feeding when as I said above they will try to snatch food out of their tankmates mouths. They even get along well with one another and are one of the very few species that I saw no aggression when keeping only two of the same species. Most times when keeping only two of the same species even in what are normally considered peaceful fish you'll see aggression often times serious. IME not so with Macropterus.
Personally I can't think which one I'd personally choose. The Macro will probably get along better with bottom dwelling tankmates then the Torosus so it might be the better choice for you. As I'm imagining you'll be keeping these cats with your Poly's . The Macro would probably just join the pack as they seem to enjoy contact with other fish IME. During rest my Macro would search out my Trachys, RTC, Hybrid, Ornatus or Granulosus to lean against and they maybe comforted by snuggling with your Poly's. Hard to say since Poly's have those garnoid scales unlike smooth catfish skin. I also wouldn't recommend getting both because from what I read the Torosus will probably have issue with a Macro sharing their tank.