Purely on its combat and boss fights alone, honestly. It's got its low points but damn if the music, bosses, and Eikon fights weren't top tier. Check out this no-damage run against the Time Keeper (guy also has other no damage boss runs).
https://www.youtube.com/watch?v=DwoWbl8h0II
Game collection: http://www.backloggery.com/bakonbitz
Gaming channel: https://www.youtube.com/channel/UCwVQm69J7bGScbv3_50C0dA