I think it's a good idea to use more than one bitcoin wallets.I use 2 wallet for security purposes. many people get hacked.
If one wallet website get hacked, you have another wallet as an backup.
I am also using a number of wallets some are online wallets and desktop wallet is also with me so I do not have any fear of hackers as if anyone will hack one of my wallet account then my remaining bitcoins will remain safe.