There is no such thing as best, over the years i've used pretty well every 3d modeler that ever was available, i finally stayed with LW 7.5 because i like it! What is best for you is what counts, everyone likes something different in an app. You have to like it and be comfortable with the proggy. So do as has been stated previously, try the demos and give each one some time for a fair assessment then choose the one you like :-)