Hmm... good suggestion but those are a little too slow. Here are some suggestions to narrow things down:
Xenoblade: Almost every track on Xenoblade. Prefer night sides to day sides when applicable as they are less busy but still have a range of sound.
Catherine: Planets Suite, Symphony 5, Little Fugue, Funeral March, Symphony 9
Did not like: the others were too busy for me.
FFXIII: Liked Eternal Love, Fabula Nova Crystallis, The Promise, The Final Stage, Kimi ga Irukara, Lightning's Theme, Memories of Happier Days, Serah's Theme, Snow's Theme , The Sunleth,
Hope's Theme was one of the few slow tracks I didn't like. To me it sounded repetitious and long, but maybe my hearing isn't up to the task.
I didn't like most of Misuda's work in the first one. Too orchestral. I did love Kajiura's work in 2 and 3 though.
Does that help at all?