Both of these cards are offered by our trusted SBI with exactly opposing features. SBI SIMPLY CLICK is for those who spend mostly online. I think most of us do. SBI SIMPLY SAVE is geared for offline spends which is becoming lesser and lesser. If you are in a hurry, just choose SBI SIMPLY CLICK as it will be more rewarding in most cases. Just add in your expenses category wise in the SAVINGS CALCULATOR and click on "Calculate" to find out for savings for each card. The card which gives you the most savings is the one you should keep in your wallet.
In case, the saving numbers are not enough for you to decide, the parameter wise comparison table is shown below.