Absolutely a Top-10 all time bodybuilder. No weaknesses. Perfect height for bodybuilding. Awesome V-tapper. Small joints. Never out of shape. Incredible "pop" when he flexed.
Weider never wanted to push him. Robby wasn't very smart. He was NOT lazy IMO but just not aggressive enough. Could have easily been a 5x Open class Mr. Olympia winner 1977-1983.