I think the most overlooked asset Trinidad had was his stamina/conditioning. I think his power may have a been a little over rated. He had good power but his precision and accuracy were a big part of his effectiveness. I think he wouldve done very well in the 15 rounds era because of his stamina.
Honestly, I've always found him boring. There's something in his stance and footword that irks me. Most people got some boxers that they simply don't like for no reason. Mine is Trinidad.