Only You can decide what is the best modeling software is best for YOU.

Modeling apps are ver personal. What works best for us may be nothing but a hair pulling event for you.

You need to try every demo of every modeling software and see which one fits your way of thinking.

Free - Wings3D, anim8tor, blender, truespace I think is still free.

Payed for are so many from low and mid like hexagon, shade, silo, milkshape( I think is still around). To higher end such as 3dmax, c4d, modo, lightwave, xsi, maya, ZBrush(is that high end, what ever)

That is just the start for a few.

It does not matter what any of us think is the best. That is a debate that will never have an ending because we are all different.

LOL pretty much a cross post.