What do you think it's better to use as Bitcoin wallet ?
Blockchain ? Coinbase ? Xapo ? Bitgo ? Green Address ?
My opinion, better choose a Coinbase.
Why ? Because, because, there is no transaction fee.
What do you think ? Is there any other wallets into your advice ?
I suggest using btc.com (blocktrail.com) wallet . as some of options you mentioned don't give you control over your private keys and have some security issues. I would've choose Blockchain.info If the old version was available to use but they totally screwed it after upgrading .
What do you think it's better to use as Bitcoin wallet ?
Blockchain ? Coinbase ? Xapo ? Bitgo ? Green Address ?
My opinion, better choose a Coinbase.
Why ? Because, because, there is no transaction fee.
What do you think ? Is there any other wallets into your advice ?
There is whole section of the forum which is specifically about web wallets and discussion of them. This thread doesn't belong here (Bitcoin Discussion). Move it to its home board.
Coinbase is not a wallet thats first thing.
Coinbase is a web wallet. And it started as a web wallet. If you want to say that it is an exchanger, then all web wallets that I heard about are exchangers as well (Blockchain.info is considered to be a hybrid wallet).
Technically , as long as you have the private key It should be considered as a wallet otherwise It's not.