When the train wins
One traveller · hand luggage · station-near destination
One traveller, hand luggage, a destination near a DLR or Elizabeth line stop, no meeting to walk into: take the train. A few pounds against a £30.00 minimum fare is not a contest, and we will not pretend otherwise. This is the honest answer for a large share of solo LCY passengers.
DLR to Bank ~22 min · few pounds contactless