I saw Blaze Bayley and Paul Di'Anno a few weeks ago, it was a good fun gig with nothing but Maiden tracks. I must admit I'm not too familiar with Blaze era Maiden, but he was really, really good. Even though it was a tiny, crappy venue, he acted like it was a stadium show, running around on stage revving up the crowd who absolutely lapped it up it. His "woo-ooh-ooh" type choruses were nothing short of epic. Di'Anno on the other hand, was really sub-par. I saw him about two years ago and he was great, but his voice is totally wrecked now. He kept doing these really terrible screamed vocals on the faster tracks, which just ruined the songs. Plus he played less than 30 minutes with no encore, total gyp.