I've been thinking about this comparison for some time:
Player A 103 R/ 21 HR/ 105 RBI/ .331 BA/ .967 OPS
Player B 109 R/ 27 HR/ 94 RBI/ .320 BA/ .923 OPS
Player A is Freddy Lynn in 1975 - the year he won both the Rookie of the Year and MVP awards. Player B is Jacoby Ellsbury this season. I'd also note that Lynn won a Gold Glove in 1975 - here's hoping that Ellsbury also gets that recognition for his 2011 work.
Pretty damn good.