Many of us prefer to hold multiple kind of coins. What do you prefer: holding it in a sigle kind of wallet or have it on a different kind of wallet?
Better it to hold one coin of one address, even you have hardware wallet, you have generate one erc20 wallet when getting new token.
no body know when you have multi token on one address attacked by hacker, when you have one, you only loss one.
If you are a well organized person you can do this, new wallet per token as for prevention knowing that hackers are just around the corner waiting for another victims, but if you are also good for adding securities and you have a strong knowledge about how to make good preventive ways to protect your wallet then you can place it in one alone so you don't have to change each time you need to trade or send your coins.