I do not have a full polish and have not had one....yet. So please take my observations on George with a grain of salt if you will.
George is 3/4 Polish and 1/2 silkie as a reminder. He also does not turn 1 year old until next month. He is very much still young and dumb so to speak.
View attachment 4116707
I brooded and raised George myself with his silkie siblings. Early on he had guidance from Bubba. He then had some Guidance for a few more months under Randy Roo the stray game rooster who took up with me. I firmly stand by the thought that the best roosters are brought up under a older rooster, especially that first year if possible.
George had to take on the role of flock rooster young, I think around 7 months old. He has blossomed and is a wonderful rooster in that regard. He responds to the hens escort calls, he is gentle on the girls. He is protective of them and is not afraid to take on something much larger then himself if he feels there is danger. Remember, before he became flock leader he protected me. Well, he tried to anyway when he saw Russ as a threat. I will never forget the sight of him latching onto Russ's tail as we walked by him and Russ flicking his tail and sending him flying. I have a mixed flock, from tiny terrorist turkey to some very large Marans and mixes. His favorite girl is my Brahma Mrs. E. I will say George does not allow any of the hens to even attempt to pick at his head feathers, or his tail feathers. He will stand up for himself. There is one area where George is slightly untested. I do not know how he will do with chicks now that he is the flock leader. He was very good around Poppet and Turkey. He was not the only rooster then, he was also younger and still very much a baby himself at the time and Poppet was evil to everyone who looked at Turkey.
In saying all that, and having had silkies for a while now, I think George's temperament and personality comes from his silkie parentage. He may look pure polish, but, he has so many personality traits that Branch had and the rest of my silkies have.