What do you consider the best wallet for BTC? bitcoin-Qt, Armory, Electrum, Multibit ?
Substantiated,Please
Substantiated: there is no "best" wallet.
There almost never is a best of anything that comes in different flavors.
It always depends on your needs. You can then choose whatever suits your needs best.
can't say better ! as for me I use two - Multibit and Electrum, pleased with using both