yes Chris, you've well described what's
on the surface

now let's look under the blanket...
imho the programs have much more in common than their appearance may suggest.
Vocator is another (specialized) Reaktor springoff, as Vorb cannot deny it's Flexor heritage and is an integral part of the SFP system.
So if one likes it's internal synth can be replaced by Minimax or whatever you prefer.
Any parameter in Vorb that's midi controllable (the XY panel comes to mind) may also be assigned to stepsequencers as in Modular, Flexor, Wolf's or external devices.
Imho this 'loose integration' is a big advantage of Vorb.
You could assign (for example) the controller values of Vectron's panel to their Vorb counterparts and you'll have 2 strangely synced devices - the singer (or guitarist, wind player or whoever) would be automatically 'in tune' with the keyboarder...
I'm not so certain that Vorb cannot come close to a typical analog piece of gear - if that's intended or desired is a different question, tho.
The internal synth got it's 'metallic' accent from it's sample sources probably.
Without question the NI products have their sonic use - nice word-play

and fill their corner in the spectrum (Chris has great results with them).
Yet I find their noiseprint slightly irritating.
I have (bought!) the B4 myself, compared the original DX7 and TX802 to FM7, recently GuitarRig to Celmo's and to my ears ALL their stuff 'sounds' identical.
The individual tone varies of course and it definetely 'sounds good', but a hard A/B ing as with the guitar is an almost frightening experience (imho).
I really didn't add the last paragraph as a contra NI statement - it's not easy to get 'their' sound with SFP devices, if that is what's missing in the mix.
But people have asked frequently for 'new' atoms by CWA for Scope, because the current ones are 'old' and supposed to be outdated...
Compare Minimax to Solaris to Uberplastic to Bluewave to Vectron to Synthetic
Modular and EDS to Flexor and KickMe
Masterverb to STW 100 series, Vocodizer to Vorb (to bring this back to the topic)
what an acoustic range - you really don't know what gems you have...
cheers (and sorry for hi-jacking) Tom