I just downloaded the free version of Maya. Sweet Jesus, what a nightmare. The interface is straight out of 1990- I feel like I should be feeding it punchcards and saving to big magnetic tape reels.
I know what you mean. I looked into Maya and 3d studio max about two years back and it blew my mind how horrible the UI was. I couldn't believe this was used by professionals. It made me cry just looking at it. Buttons and icons scattered about in no particular order. It was a damn disaster.
I finally tried out cinema 4d, and it was without a doubt the easiest to use of the big 3d apps. Its just too bad that that plugin is lagging compared to the ones that are more mainstream with horrible interfaces.
Ever since I started using maxwell it always seems like there is some wierd obstacle in the way of workflow. SW cant handle textures. Ok I go to cinema. Now I have to use a 3rd party software to export my model ie polytrans or moi. Wait its plugin stinks because material tag system is not integrated well. Ok I go to studio. Wait I can't do animation or map a texture the way I wan't.
One day the workflow will be smooth. Until then I dream of staying in one application and having all my modelling and rendering needs met. Studio works good for me 90% of the time for still images. Until I want to do an animation of my design one day

Sorry for the rant. I have nothing to be angry about really. Maxwell puts out fantastic results time and time again on projects I have worked on.
Industrial Designer
Concept Center International
www.ericlagman.com