Spellbound for me and all albums up to and including Babylon were consistent and superb to me. Far Beyond the World is also good but saw the dip in quality and number of classic songs per album for me from there onwards (and including the latest 2 new CDs).

I used to love Ten now I like them but find them at times a little dull and lacking the huge anthemic rockers and classy ballads of the first 5 albums. Just can't get in to 'Heresy and Creed' at all on times I've played it on Spotify so far.