ADA is worth 1/10th of ETH in terms of market cap, but has so much more potential. Completely lost my confidence in ETH as new ICO's on decline, unknown inflation etc etc.
To be honest I don't have so much faith in ADA, as in ETH. I mean, it is not bad but ETH looks more reliable to me. ADA only a year at the market. To me it is still fresh to get a high trust.
ADA Is also a solid coin, investors are investing in ADA because they believe that it will bring them good profit just like ETH did to its investors.
In terms of development, ETH is more developed as it has existed first and the community is bigger.