Who was the best first baseman in Toronto Blue Jays history?
Carlos Delgado — 36.8 bWAR
In 12 seasons with the Blue Jays, Delgado became the team’s all-time leader in home runs (336), RBI (1,058), total bases (2,786), extra-base hits (690), and plenty of other categories.
Delgado led all of baseball in an All-Star season of 2003 with 145 RBI and paced the American League that season with a 1,019 OPS and 161 OPS+.
Other candidates: John Olerud (22.6), Fred McGriff (19.4)
Who was the best second baseman in Toronto Blue Jays history?
Roberto Alomar — 22.3 bWAR
Roberto Alomar has the highest bWAR of any Blue Jays second baseman in Toronto history, but has been placed on MLB’s ineligible list following a sexual misconduct investigation. Toronto has also severed its relationship with the 12-time All-Star (five times while with the Blue Jays between 1991 and 1995) over the investigation’s findings.
Alomar is a member of the Baseball Hall of Fame and posted the second-highest career batting average of any qualified Blue Jays player (.307). His hitting prowess was on display in the 1993 World Series when he slashed .480/.519/.640 in 27 plate appearances as Toronto captured its second consecutive title.
He was a Gold Glove winner in each of his five seasons in Toronto.
Other candidates: Aaron Hill (17.1 bWAR), Orlando Hudson (12.6)
Who was the best shortstop in Toronto Blue Jays history?
Tony Fernandez — 37.5 bWAR
A five-time All-Star and four-time Gold Glove winner, Fernandez played in 1,450 games over his 12 seasons with the Blue Jays. He is the franchise’s all-time leader in singles (1,160) and triples (72) on his way to being the all-time hits leader for the Blue Jays (1,583).
Of all of the positions on this list, there is no wider gap between the player earning the most bWAR at the position and the player in second than shortstop, showing just how dominant Fernandez was during his time and how the Blue Jays have had trouble replacing him.
Other candidates: Marco Scutaro (9.8 bWAR), Alex Gonzalez (9.7).
As a note, Bo Bichette has already racked up 9.3 to place fourth on the list.
Who was the best third baseman in Toronto Blue Jays history?
Josh Donaldson — 19.5 bWAR
The “Bringer of Rain” brought plenty of magical moments to the Blue Jays during his four years with the franchise. Between the start of the 2015 campaign (his first after being traded to Toronto by Oakland) to the 2018 late August trade that sent him from Toronto to Cleveland, Donaldson slashed .281/.383/.548 and hit 116 home runs while logging a combined 148 OPS+, his highest number with any franchise.
In the 2016 postseason, his final one with the team, Donaldson went 15-for-36 (.417) with seven extra-base hits.
Other candidates: Kelly Gruber (16.1 bWAR), Rance Mulliniks (15.8)