[Squidge]

Without an automated tool, it's very "boring" to unpack, but it's certainly not the most difficult. Armadillo's strength lies in it's nanomite technology - Although this can be broken, it takes time.

So, no. It's not the hardest, but it is time consuming without an automated unpacker. Before you go thinking of downloading an unpacker however, note that none of the current public ones handle Nanomites and that Chris is very active in new releases as soon as he spots a new unpacker on the scene.

I know of two Armadillo unpackers for 3.10 which also handle nanomites, but the chances of these becoming public is extremely slim, as the people writing them like to keep them private (mainly so Chris doesn't know how they work)