It all depends on what your looking for. The PL patch cover all buildings/objects, taerrains in all seasons, sky/clouds, FX, sound effects, and so on. Future versions will cover planes/squads, flight models, damage effects, AI, and such.
If you run the current PL you could then run something like the western front patch to add in squads and planes and other neat campaign features. James Heltons Revenge of the Jasta's patch isnt truely compatible with the PL superpatch as he has several old PL graphics and the old PL soundpatch he put in his patch.
[This message has been edited by Kess (edited 11-09-2002).]