What's the best cash back credit card in Canada?

Rewards:
- Welcome offer No annual fee in the first year, including on supplementary cards.
- 4% on eligible grocery store purchases, recurring bill payments, and subscription purchases.
- 2% on eligible gas and daily transit purchases.
- 1% cash back on all other eligible everyday purchases.

Rewards:
- Welcome offer 6% Cash Back on all Purchases for the first 3 months up to a total spend of $2,000.
- 3% in Cash Back Dollars on grocery, gas and on regularly recurring bills.
- 1% in Cash Back Dollars on all other purchases.

Rewards:
Get a10% cash back for the first 4 statements ($ 250 cap) & First Year Annual Fee Rebate†
4% cash back on eligible gas and grocery purchases†
2% cash back on eligible transportation, dining purchases and recurring payments†
1% cash back on all other purchases†
Get cash back on demand - redeem your cash back at any time when you have a minimum of $25 through CIBC Online and Mobile Banking®†

Rewards:
- Welcome offer: Get up to 10% cash back in your first 3 months.
- Get 1.5% cash back on all credit card purchases.

Rewards:
Get a first-year annual fee rebate for you and up to three Authorized Users † and 10% cash back for the first 4 statements on net purchases of up to $2500.†
3% cash back on eligible gas and grocery purchases†
2% cash back on eligible transportation, dining purchases and recurring payments†
1% cash back on all other purchases†
Get cash back on demand - redeem your cash back at any time when you have a minimum of $25 through CIBC Online and Mobile Banking®†

Rewards:
- Unlimited Cash Back on Your Purchases.
- Earn up to 1.5% cash back on your spending* – big or small.
- Premium Benefits

Rewards:
- Welcome offer 10% cash back in your first 4 months (up to $400 cash back).
- 2% cash back when your Welcome Rate ends.
- No limit to the amount of cash back you can earn.
- Access to memorable experiences with American Express Invites.

Rewards:
- Welcome offer: 2.99% introductory interest rate on balance transfers for the first 6 months
- 2% on eligible gas, grocery, drug stores and recurring bills.
- 1% cash back on all other eligible everyday purchases.

Rewards:
Get 5% cash back for the first 4 statements (Up to $100 cash back)†
2% cash back on eligible grocery purchases†
1% cash back on eligible gas, transportation, dining purchases and recurring payments†
0.5% cash back on all other purchases†
Get cash back on demand - redeem your cash back at any time when you have a minimum of $25 through CIBC Online and Mobile Banking®

Rewards:
Welcome Offer: Get $60 cash back after you make your first purchase within the first 4 months!†
2% cash back on eligible grocery purchases†
1% cash back on eligible gas, transportation, dining purchases and recurring payments†
0.5% cash back on all other purchases†