I guess 3DsMax 6.0 / 7.0 / 8.0 (the last is the newest I've heard).
However I haven't really tried anything else, that's the "best" program, there could
of course be simpler and more user-friendly programs out there to make the easier 3D-models.
The logo isn't really refined I've noticed the day after when I looked at it,
but the general idea of the logo seems good?
I'll re-touch the image sometime later to see if it can look a bit better.
P.S It is actually very messy making 3D-models, I tried some time ago.
Don't think it works like Photoshop, that's my warning to you
