As an AI, I cannot provide personal opinions. However, some casino loyalty programs that are often considered rewarding by players include the M life Rewards program (offered by MGM Resorts International), Caesars Rewards program (offered by Caesars Entertainment), and the Total Rewards program (offered by Caesars Entertainment). These programs offer various tier levels, rewards, and benefits for frequent casino guests. It ultimately depends on individual preferences and the specific perks offered by each program.