To Tame A Land is awesome. Children of the Damned and 22 Acacia Avenue are also great. Moonchild and The Prophecy are underrated and so is Flash of the Blade.
Running Silent Running Deep and Mother Russia are also good.
Como Estais Amigos from Virtual XI and 2AM from X Factor show Blaze singing well and don't sound much like Maiden but are good songs.
I've always liked Caught Somewhere In Time too.