I am fairly sure the part 'bit' in these names has not been chosen because it signifies 100 satoshis, but rather because it is the 3 first letters of the word bitcoin and also indication of some kind of cute humbleness. So it is a bit ( pun intended ) disingenious to count this as a vote for anything. If anything it is yet another indication of the biggest problem with 'bit' as how it has a million meanings in peoples heads and about 999999 of those are stronger than the meaning for 100 satoshis and it is an uphill battle all the way if anybody tries to change that situation.

I am not at all against the concept of taking 100 satoshis as an important unit. However the word 'bit' just sucks royally in this specific meaning and these polls are an indication that instead of trying to force a square peg into a round hole maybe somebody could come up with a better name.

I believe the unit mBTC is in much heavier use and more importantly in spontanious use. It is however quite impossible trying to count exacly how much more heavier use for example because googling for the word 'bit' does not give you any useful links or linkcounts at all. By the way that is another indication that choosing the word 'bit' for anything significant is a poor one in this age when we should think about search engine behaviour as an quite important argument as well.

Try for example google for 'USD/bit' and tell me what you can find when starting from google as the exchange ratio between USD and 'bit's. That should be an easy task if 'bit' is in such wide use as you say in popular bitcoin exchanges. Let's see how easy you find that job and whether you think choosing the word 'bit' seems sensible choise of as a keyword to you even after you have tried this googling task.