What features are you looking for?
Bumping this thread because I like Armory's fragmented backup, but I just cannot devote 80 Gb of disk for blockchain + Armory cache. I tried Electrum's multisig, but I don't understand it: I need to add other signers' master key.
Well..you need two devices(either windows/linux/os x)at the creation of the multisig wallet you will get a seed that you need to write down for backup and after that you get 1 xpub key that you need to export(as in write it to other device) and from both xpub key a multi signature wallet will be created(every outgoing trasanction will have to be signed by both devices,at least one of them need to be connected to the internet)