What is the central difference between the code of law written by Joseph Caro, and the gloss to that code written by Moshe Isserles?
On nearly every matter of practice, Caro is more strict than Isserles
Caro did not cite sources, Isserles did
Caro was considered one of the Geonim, Isserles was considered a medieval halakhic authority
Caro wrote for Sephardic communities, Isserles presented the positions of Ashkenazic authorities