It depends on yourself which one do you prefer, which one do you more master in ! Once again it depends on the artist theirselves.
For me, the best combination is Maya and Soft. It varies for every people (like you and me). From your post. I can say that, probably you better choose Maya and lightwave for combination. Use Maya as your modeling app. and render it from lightwave. But the thing is you have to convert all NURBS to polygon. I think you know this. and in smooth the surface in LW. If you want to import the animation or any camera. Use polyTrans prog. The best transfering app i think.
Hope this is helps,
Vai