It depends on whether you use the OT more like a drum machine, where each track hosts one instrument, or groovebox. In the drum machine approach you can easily fade specific elements in and out and easily shape elements individually, in the groovebox approach you can use more elements at once.
I use a blend of the two, with emphasis on the drum machine approach.
Tr1: 64 kick oneshots,
Tr2: 64 things that pump against the kick, sub/perc combos with 1/16 delays and sidechaining prepared in Ableton, sometimes also the same chains as in Tr1 with different settings,
Tr3/4: 64 Hihats or Cymbals, sometimes different one-of-kind chains p-locked per step or pattern,
Tr5: 64 longer elements, vocals, drones or sampling from mic etc,
Tr6/7: kit chains as in a groovebox, or 64 percs, or 64 claps, or recorded drum jam loops,
Tr8: master FX.