Strata 3d has way more capabilities than you would think.
I was (I believe) among the first to download it, and I've used it fairly consistently since then, and am still discovering stuff about it: initially I thought it actually had less features than StrataVision -- how wrong I was.
The big downside is that you have to pay for the manual.
In terms of editing polygons point by point, you would be much better off editing beziers point by point: in Strata, you can convert beziers to polygons, but not the other way around. However, the most complicated shapes can be better created using stencils and transparency maps, as well as bumps.
If you find Strata's modelling too weak, try Pixels 3d. A warning, though. Pixels has a kitchen-sink approach to modelling -- you can do almost anything, if you're prepared to wait for it.
PS, Ignore what people say about Lightwave. If you have it, great. If you don't have it, just forget about it -- nobody should dream of spending that kind of money to produce an EV or EVO plugin. And, BTW, I've yet to see the plugin which benefited from Lightwave when it couldn't have been made with Strata. At the end of the day, the 256 system colour requirement puts a big limit on what you can do.
Roll on EVN.
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M A R T I N • T U R N E R