Is this a question you think about? Me three. You know who else thinks about it? USA Today. Greg Maddux tops their list. Barry Bonds is also on the list.
To be honest, I don't think I'd want to see anybody playing in "one more All-Star Game" just because. I know that's basically what they did for Gwynn and Ripken, but really, it's such a popularity contest anyway. No need to force the issue. Let the kids watch their hippity hop new players. Us old timey timers will have to settle for memories of ASGs from years past.