Either Texas will not likely ever compare to the aggression of a Amphilophus, in a rare occurance any fish can claim top dog, but the territorial nature of Midas/Rd's/Amarillo/Trimacs etc is just to overwhelming for the average fish.
Texas of either type are deadly to their own..males will kill females if somthing goes wrong in their fry care and its not caught and addressed.Thats my experience.