I am thinking for a long time how save is to store all your ETH and ERC20 tokens on myetherwallet. I read a lot of articles and many people suggest to use Ledger Nano S instead of myetherwallet. But no one exactly tell why. Why is not good to store ERC20 tokens on myetherwallet. What if you lost your Ledger Nano S. It is almost necessary to have 2 Ledger Nano S in my opinion.
IMO it is better to use Ledger Nano S only for stocking erc20 tokens for long term holding of the tokens. If it were to be held for a little time, I suggest you OP to use only myetherwallet it is safe unless you will fall prey to phishing sites. Just remember to check if the site you entered is myetherwallet itself or not. Just to be in the safe site, bookmark the original site of MEW and use it always to access your eth wallet.