Hope you already learn about What people think about both of those! I also think both are good enough and you can feel free to investment your money on the one, that you like.but if we check the movement of btc and eth, they we can see both of those have done quiet large groth but bitcoin is moving faster than eth.so i think if you want to earn much benefit, then bitcoin might be best choice for you over eth.and now its up to you
In my opinion, the two coins don't need to be doubted because they both have their respective advantages,
so we only need to choose both or one and it all depends on the decision of each