My favorite baseball player of all time is Tom Seaver.
I grew up in awe of the Mets pitching staff, Koosman, Matlack, but especially Tom Terrific. I used to try to emulate his motion, hands coming together over my head during the windup, knee dragging the dirt during the follow through. When he was traded during the Midnight Massacre of '77 and cried on TV, a 10 year old kid cried while watching.
When he came back in '83 and pitched opening day to beat Carlton 2-0, I was there with my Dad & brothers. I never forgave Cashen for letting him get away again at the end of that season (though '86 did bring Cashen back into semi-good graces...

#41 pitched for other teams, but he will always be the Franchise for the Mets and their greatest player. He's the only pitcher I've ever rooted for against the Mets when facing them.
There's a special pride in knowing a Met, my favorite player, has the highest percentage of votes for any player ever voted into the Hall of Fame.
Its funny. I don't identify with players like I did when I was a kid. I've aged, times have changed, the game has changed. I wonder if any kids today still do.
Glenn