Thanks for putting words in my mouth. I don't think Puckett is an "automatic" HOFer. On the other hand, he DOES have two World Series rings that the Twins wouldn't even have sniffed if it weren't for him. Do I think Puckett deserves it before Mattingly? Of course. And anyone not blinded by the pinstripes would agree.
I also think that, strictly based on production, Keith Hernandez is a HOFer way before Mattingly. He didn't have the power that Mattingly displayed for about five or six years, but he established the defensive benchmark for that position, won an MVP, and, oh yes, won two World Series rings. He has only himself to blame for the fact he was done by age 35, and I really don't think he's a HOFer, but again, he gets in way before Mattingly.