Of the "3000 hit threats" listed (neglecting A-Rod and Pujols, who could retire tomorrow and have the on-field resume for the HOF), Jimmy Rollins would least devalue the milestone.

Player, age of last completed season, hit total, bWAR, fWAR:

Damon, 38, 2769, +52.1, +45.9
Pierre, 34, 2141, +15.3, +28.1
Rollins, 33, 2024, +40.1, +48.8
Young, 35, 2230, +22.1, +29.0

Rollins is already almost the best guy on the list, and in any scenario where he reaches 3,000 career hits, he's going to add about 6 productive (~2+ WAR) full seasons plus maybe a 'farewell tour' as a part-timer. He could slide over to be a good 3B at some point, whereas the other guys are generally defensive liabilities at weaker positions.

Unlike Pierre/Young/Damon, Rollins has useful secondary skills to keep him off the bench through periods of BABIP misfortune. He could probably stay a ~15 HR threat, and add ~20-25 steals while keeping up his high success rate. Throw in that his SS defense is still above-average. He'll never lead the league in batting average or walks, but he's not horrible there.

He has a lot of the miscellaneous boxes checked (WS ring, MVP trophy, strong 'peak' period, 3x All-Star (*), 4x GG, well-liked player who has avoided controversy) that the voters like to see. If he gets to 3,000, he's a HOF lock, especially if he spends his whole career in a Phillies uniform. Voters sure love them some single-team guys.

(*): Strangely, he was passed over in his 2007 MVP season for Jose Reyes (understandable) and JJ Hardy (???) despite being healthy enough to play 162 games that year.

Normally, I just read American League stuff, but since Sam's A.L. version was so entertaining and interesting, I gave this a try. It did not disappoint.

If Cardinals second basemen = Doctor Who, then Tommy Herr is Tom Baker's Doctor. A long tenure of popularity cast a shadow over his successors.