Cheers _ I'll give you half credit for 3D Texture painting, but can you export a new texture map, once you painted, else how would you get the work back into Poser?

" UV editing, mesh editing/modelling"

Those are the same, and I covered these already.

"with falloff zones"

I think the P7 magnet tool offers these?

"Wacros"

These are nice, but Poser does has Python, which may not be as simple, but is rather versatile.

"Timesaver"

I'm not really sure what you mean.  I'm fairly handy with poser magnets, there is'nt  alot they ca'nt do.  I think a modeler would be much of the same thing.

"GUI"

I do'nt htink any program has as an attractive GUI as Poser!  Carrara, maybe, but it got it's GUi from Poser.