10 player ballot: Vladimir Guerrero, Trevor Hoffman, Edgar Martinez, Mike Mussina, Curt Schilling, Larry Walker, Fred McGriff, Chipper Jones, Jim Thome, Johan Santana.
Reasoning for those ten
Guerrero, Jones, and Thome are no-doubters that will get in on the real balloting this year. If you wonder why, check out their Baseball Reference pages.
Guerrero is a nine time All-Star, 2004 AL MVP, eight 30+ home run seasons, ten seasons of 100+ RBI, two seasons of 37 or more stolen bases, career .318 hitter, 140 OPS+.
Thome has more than 600 home runs, a career on-base percentage of .402, and a career OPS+ of 147.
Jones has more than 450 career home runs, a .303/.401/.529 career slash line, and a 141 OPS+.
For the other seven, I would vote for them because of these reasons.
Hoffman: second in All-time saves with 602, nine seasons of 40 or more saves, 88.8 percent conversion rate of saves, nearly won the Cy Young Award in both 1998 and 2006.
Martinez: best designated hitter of all-time. He has the designated hitter award named after him, six seasons of 100+ RBI, eight seasons of 20+ home runs, nine seasons of 30+ doubles, 10 full seasons of over .300 batting average including league-leading twice, 11 seasons with 97 or more games played that he had an OBP over .400, and a 147 career OPS+.
Mussina: 270 career wins, 11 seasons of 200+ innings pitched, five time All-Star, nine times ranking in the top ten in Cy Young Award voting.