Today it is my G21SF.
W/a 13+4 mag as a primary mag loaded with regular old Gold Dots.
As much as I love my G34/19, I have had a 20+ year relationship with G21s, and in the winter (especially big game season) the fat guy comes out. So now he is sitting close by, keeping the old Belgian Browning Auto-5 company.
Edit to add: When the 21 gets carried however, the mag arrangement gets swapped, and the 17 round mag is the reload, with the standard mag as the primary. I have tried the big mag as a primary, and it was a bit much.