Affin 4.33% 15mths FD without half yearly interest payout is the same as 4.26% 15mths FD with half yearly interest payout.
Not sure RHB 4.21% 15m step out FD still available or not, it offers quarterly interest crediting to your CASA on every roll over and that boast up the compounded interest rate to approx 4.25% to 4.26% and the bonus from RHB FD is that you have 4 withdrawals opportunities without penalty thru out the 15 months tenure.