Nice article! Very useful to plot the effective interest rates of all 3 banks as a function of the account balance. Most people discuss and argue based on maxing out the balance that can earn bonus, but not every one has that much cash sitting in bank account.
In my case I stay with dbs multiplier and 2 categories because its the best and easiest with my usual cash balance.
Good comparison

Surprised that OCBC 360 is still able to offer 2.4 - 2.5%.. does this mean there's still hope for better rates in the coming months from other banks?
Thanks! Glad that it is useful
what if you add the quarterly cash rebate for UOB One?
Yes, the gentleman is right. I wanted to keep it solely as bank account comparison and so have avoided adding credit card into the the mix as there are going to be many different combination of credit card to compare.
For a rough idea of the interest rate that you are getting with UOB with the cash rebate from UOB One card, I have left some working including the cash rebate below
Balance| Account Interest| $50CR Interest |$50CR
$5,000 $62.50 $262.50 5.250%
$10,000 $125.00 $325.00 3.250%
$15,000 $187.50 $387.50 2.583%
$20,000 $252.50 $452.50 2.263%
$25,000 $317.50 $517.50 2.070%
$30,000 $382.50 $582.50 1.942%
$35,000 $450.00 $650.00 1.857%
$40,000 $517.50 $717.50 1.794%
$45,000 $585.00 $785.00 1.744%
$50,000 $655.00 $855.00 1.710%
$55,000 $725.00 $925.00 1.682%
$60,000 $795.00 $995.00 1.658%
$65,000 $979.00 $1,179.00 1.814%
$70,000 $1,163.00 $1,363.00 1.947%
$75,000 $1,347.00 $1,547.00 2.063%
Balance | $100CR Interest| $100CR| $300CR Interest | $300CR
$5,000 $462.50 9.250% $1,262.50 25.25%
$10,000 $525.00 5.250% $1,325.00 13.25%
$15,000 $587.50 3.917% $1,387.50 9.25%
$20,000 $652.50 3.263% $1,452.50 7.26%
$25,000 $717.50 2.870% $1,517.50 6.07%
$30,000 $782.50 2.608% $1,582.50 5.28%
$35,000 $850.00 2.429% $1,650.00 4.71%
$40,000 $917.50 2.294% $1,717.50 4.29%
$45,000 $985.00 2.189% $1,785.00 3.97%
$50,000 $1,055.00 2.110% $1,855.00 3.71%
$55,000 $1,125.00 2.045% $1,925.00 3.50%
$60,000 $1,195.00 1.992% $1,995.00 3.33%
$65,000 $1,379.00 2.122% $2,179.00 3.35%
$70,000 $1,563.00 2.233% $2,363.00 3.38%
$75,000 $1,747.00 2.329% $2,547.00 3.40%