Jormungand, as much as I enjoy those Mitsuda tunes you posted, I really love the fuller sound of a live orchestra. I've been listening to the Azure Revolution OST and I think it's some of Mitsuda's best and most intricate work to date.
Some of my favourite from the album:
Battle with Maxim
Young Soldiers Charging Towards Victory
Threat of the Ruzhien Empire
Richer
Romance of Two