Having no actual coaching except books, I started out prioritizing depth, angle, squareness and playing a reactive, stand-up style. Decades later, I got back into it and with youtube videos to learn from, I prioritized squareness, angle, depth and playing a hybrid reactive/blocking butterfly style. Not playing anymore though.
I think my preference before I hung up the pads was just looking good on the ice by wearing Vaughn and Koho gear.... forget about angle, squareness or depth.
Just kidding. I had to juggle when to prioritize depth, squareness or angle depending on the situation. If the puck carrier was at the blue line, depth was priority. If the puck carrier was behind the goal line, then angle was prioritized so I could handle passes coming out front and to avoid someone trying to bank the puck off my pads and into the net (which had happened). If the puck was somewhere in between, then squareness was prioritized.