Eth is more trustable and easy to transact but still why bitcoin is on first choice
Etherium innovation won't be discovered in the first place if there's no bitcoin and blockchain. Bitcoin as the father of all cryptocurrencies,should come first when it comes to value and be accepted by the people regardless of its imperfection.
Trust depends entirely on the person who uses them. If you are knowledgeable with etherium and bitcoin then its up to you if you will trust them or not. These two digital innovations both have flaws and imperfections and still thrives hard to prove its worth for our convenience and advancement of technology.