No offense but to be honest, it is odd that you considered coinbase to be the best wallet IMHO, when the users don't have access of the private keys at all...
I did it with a newbie orientation - since that's what my site is about. Also Coinbase just released
Coinbase Vault which lets you have full control over your Bitcoins.
Coinbase for best wallet provider they must have made a big typo over there. there's no way it's THE BEST.
New users no do mislead to that list this bs, In my list there's blockchain, Armory, Electrum then multibit.
Can you please explain shortly why you think these are the best ?
i agree with previous comments and say best Web-based online wallet: Blockchain.info
installed on pc wallet: Electrum
and to answer your question
what do you think should be the features I should be measuring
1. is the desktop wallet full node or uses SPV
2. do you have control over your wallet like access to the private keys
3. how long was the wallet around and what is the popularity
4. add some explanation to somethings like why Blockchain privacy is weak but coinbase is moderate?!
5. what sources did you use
Awesome thanks a lot!