FYI,myetherwallet is not the most secure wallet out there,I wouldn't touch anything with a 10 foot pole which exhibits on the web especially if I'm to store my money in there.Anyway,what would an investor know about the technical side of cryptos ? 
You clearly don't know how MEW works. It's basically just a client-side page for your wallet. Nothing is stored anywhere other than your wallet file that is used to open and manage your wallet or nothing at all if you want to open your wallet with its private key.Is that thing open-sourced ? How can you see the stuff is generated completely online without having the db to interfere ? No matter how you put it,I still think downloading the official chain does the job for me.Blockchain.info is your closest friend which is quite secure from a long time.
And now you are saying that Blockchain.info - which wallet is stored in their database - is "quite secure"; Even after your comment saying that you wouldn't "touch anything which exhibits on the web" (?).If you are looking for something similtar to MEW, I suggest you Coinbin[1], which is open source, don't require any internet connection and can be used from any PC if you have the email and password chosen when generating the wallet.
[1] https://coinb.in/#wallet