Gday,

I do 90% of my print designs using Cinema 4D, took awhile to get my head around it, It`s great for fine detail adjustments and you get set desired polygon counts as high as you want depending on how many alterations you require to your object. I have tried Rhino5 but only rarely use that ( haven't given it a fair chance to be honest ). I have tinkered around with Solidworks & AutoCAD but purely because of the hours I have put into C4D that's my prime design software for printing atm. Plus squillions of you tube tutorials out there no matter which one you decide to go for.

Cheers

Cheerss