Me too i prefer BNB/binance rather than ADA/cardano cause they have already established a strong position in crypto world
Now the market capitalization of BNB coming close to ADA and I don't think BNB can be said to have established a strong position in the market.
The growth of cardano is so fast in term of market capitalization that maybe it can replace BNB in just few weeks but maybe BNB will not just doing nothing when ADA has come really close. But if ADA suddenly have price drop then BNB will still stay on its current position.
It's a close battle between the two but it could just be in the 3rd position that they are fighting over. Both have a lot to do if they wanted to be the 2nd. What matters for the holders I believe is for Cardano to be adopted since there are contracts made from countries in Africa that were told by Charles. There is a chance for Cardano to be widely adopted since more people knew cryptocurrency today and even the big influencers are spreading the word about it.