For sure the USD is a lot bigger still than bitcoin and will always be cause the USD has been around for so long that it is hard to be competitive against it.
But the bitcoin will become quite big though so who knows BTC might defeat USD one day.
I also believe that Bitcoin is still weak. At this time, the dollar wins. But nobody knows what will happen in the near future
yes you are right bitcoin is still weak because little demand but when bitcoin become famous because has been adopted by bank, i believe bitcoin will much stronger than usd.
I don't think that bitcoin is weak because think that we are still few in the market but look upon the price of bitcoin. It can tell us already what is the value of bitcoin in the economy. But bitcoin to be adopted by banks I don't think that it will happen because they don't have powers to control it but only US dollar.
A weak coin will not progress, what I see is that the price of bitcoin is good and this year alone we have a good increase already so I guess that is already a sign of a strong coins, in addition we have witness the crisis in the previous months but now bitcoin is still back on its progressive status.
Even coins stronger than a majority of their counterparts can still be easily regarded as weak or something that will never progress meaningfully, and you can see that with coins like Litecoin, Ethereum, Monero, and whatever else they would have.