When you put it like this, it's pretty unfortunate. I know that Tyranny isn't liked as much as AOB or CW, but I love that album. A lot of the songs would be fantastic in a live setting. Abduction, Kill Devil Hill, Navigate The Seas Of The Sun, Devil On A Hog and A Tyranny Of Souls would make for an amazing live experience.
The time between Maiden records has steadily increased over the years. Bruce unfortunately (for me) has been keeping himself busy with other ventures. Steve on the other hand has British Lion, which isn't for me. If I had the power, I'd switch them and have Bruce focusing on solo albums in between Maiden albums, while Steve does something else
(or continue with British Lion, for the fans of that)