sister program to maya????
 

I have been using maya for about 6 or some months now.... i guess i will have to get some sister program for it..... which one do you suggest which is easy(not too easy to be stupid), powerful and is the best in one thing, not in everything like maya(except it renderer), or which has an extremely good renderer(i have maya 4 right now, but when i get 4.5 this month will get mr)....

sorry for the totally disarranged above post... but which of these is your choice:

Lightwave
XSI
3DSMax