I'm thinking specifically of the Western Front, but I suspect this could apply to the Eastern or Italian fronts, too.

For example, were Bavarian jastas, or other Bavarian "squadron", more likely to serve with the forces commanded, say, by Crown Prince Rupprecht of Bavaria (6th Army to August 1916, then Army Group Rupprecht - 1st, 2nd, 6th and 7th Armies - thereafter) to whom division-, or even corps-sized formations of Bavarian troops were assigned?