The Hollywood sets are confined to specific segments of the orchestra, and pricey in their own as well. You can buy the string(violins, Violas, Celli, Bass), the Brass(trumps, bones, tubas, horns), or Woodwinds.
Even bundling those three sets would be a pricey purchase. It comes with no percussion which is a big downside, it's a resource hog from hell(most of the functions you would even buy the set for most likely would not work that well on your laptop).
Shreddage II only includes a clean sampled electric with no FX run over it. The advantages of this are that you can run it through different AMP sims, pedals, cabinets, etc... so achieve the sound you want. There is no preset distortion on it,blah blah blah...Shreddage Bass = same concept. I believe they have a bundle of the two as well. The best acoustic guitar sound I've heard is Orange Tree Samples Evolution Acoustic Guitar, but it's pretty comlicated when you start trying to make it sound like a real guitar. An example of EAG is the intro of this...
http://soundcloud.com/zack-parrish/valdis-story-abyssal-city-29I manually controlled the picking direction, the fret position, had it set to mono strings(each of the 6 strings notes based on the fret position would play legato and replace the previous note if it was played on the same string as another note), etc blah blah. It's been a while since I wrote it so I can't remember all of what I was screwing with... but it did take around 5 hours to sequence just the intro guitar part(part of that was actually making sure it was 100% playable on a real guitar though).
CCC I have found to be a powerhouse for many things right out of the box. Everything in this track was done using CCC save for the guitar part which is real...
http://soundcloud.com/zack-parrish/windhaven-the-final-assaultThat was the second thing I wrote using CCC. Most of what is in there is EWQL SO Gold samples, some of the percussion is from Storm Drum 2, the piano is from Pianos Gold, the Duduk is from Ra, annnnnnnd... think that's all.
I would not recommend the Symphonic Choirs though but instead looking at getting one of the other sets, possible something with some more synth. The choir set's only advantage is having Wordbuilder but it'll take you 100 years to make something sound good with it, and the AAAAAAAAH patches and such aren't that great. The choir samples from Goliath actually are stripped down versions of the same thing. :\
One thing to keep in mind is that alot of libraries(a few some have barked out in this thread including myself) require a full version of Kontakt 4/5 in order to use them. Some like Shreddage II come with a license to use them with Kontakt Player(works with licensed sets only, everything else loads up in demo mode). That's one of the main advantages to getting KOMPLETE, because it comes with the full version of Kontakt, and it's something you will want to have in your arsenal at some point. You also get a ton of synth options with COMPLETE, but if you buy Sonar X2 it usually comes with some factory installed presets that are pretty nice. That's the weak point of CCC... the synth instrumentation, as well as the customization of the instruments just isn't there like in kontakt. In Kontakt you can use scripts(has a scripting engine that is worth learning IMO) that let you do some pretty cool stuff, lots of instrument control options(8 insert effects, 8 send effects, modulation(volume, pitch, etc), etc.
Oh, I forgot almost... Battery 3(might be Battery 4) comes with Komplete and it's got a ton of drum presets in it, and you can also build your own kit with it. I think for acoustic drums it kind of blows though, and I always go back to Ministry of Rock II's rock sets for drums myself, and use Battery 3 primarily for synthetic parts.
Cinesamples is nice, but it's not exactly as perfect as it claims to be. I have used the brass, and a friend of mine(
http://soundcloud.com/jeffball) has used all parts of it and we both kind of agreed it sucks to work with next to the Hollywood sets.
LA Scoring Strings are wonderful but it's only strings, and they alone cost more than CCC.
For CCC & Komplete I'd wait for a Holiday and see if they put either on special. Sometimes CCC will let you add two more sets without raising the cost, and KOMPLETE will drop in price by $100-200(rarity but it happens).
Anywayyyyyy...
From the music I've heard from you, you kind of sound like you are going the same direction style wise that I did, so my recommendation would be to go with CCC first and then ultimately get Komplete too to expand your synth library more. You will then have Kontakt 5(or 6 if it's out by then) and can expand into more detailed libraries to really take advantage of all the technology laid out in front of you.