Went through the SPOTY winners for a quick (British only) comparison. I think there’s really only Jonny Wilkinson’s 2003 that compares as an individual in a team (standout player in a world cup winning team in Australia), and Andy Murray’s 2016 (world number one, 3 grand slam finals including winning Wimbledon, Olympic gold medal, won the ATP finals, taking out historically good competition on the way) for an individual. I think Murray wins overall, even as a cricket fan.
Some genuinely shonky winners though - Damon Hill for winning one WC in clearly the best car? Greg Rusedski for being OK at tennis compared to our non-Canadians? Zara Phillips for riding a horsey?