With Liverpool playing in the Champions League semi-final on Tuesday, Warnock expects Benitez to leave his star names on the sidelines again against the Cottagers on Saturday but believes that would show contempt for the clubs fighting to preserve their top-flight status.
"The fact of the matter is that if Liverpool were already out of the Champions League and needed to win to get fourth spot, they would play their strongest side.
"It's part of a big club's mentality. They look after themselves and they don't bother about anyone else. The whole story that Sheffield United were going down and me having a pop at them afterwards was just treated like fish and chip paper by them. Liverpool didn't care because they weren't the ones getting hurt by it all.
"I'm still very bitter about it and personally I hope Liverpool never win another trophy under Benitez. I like them as a club but I would be very pleased to see them win nothing."