One of the reasons i heard is that it has deterministic wallets with 160 bit seed, vs 256bit seeds in armory.
But armory is switching to 160bit, soon anyway (bip32 i think).
It's possible to use 256 bit seeds with BIP32, and I'm sure Armory will do that. The only reason Electrum uses smaller seeds is to make their word list shorter.
And what improvement to electrum do you need, to finally make the switch to electrum?
thanks!
The user interface for Electrum is... primitive compared to Armory. I couldn't even begin to list all the things.