Well, I know I'm still a noob to the forums and everything but I've been a guitarist for several years. Both sides of this argument have their points but I'm going to have to agree with Rose. If you want realistic sounding guitars, how about you get a guitar and a nice rig and make those chugga chuggas sound the way they are supposed to. I'm not saying you can't make synth'd guitars sound good/real; this site is filled with artists who do just that. However, listen to the best synth'd guitars you've ever heard and then go play a Gibson or a nice Ibanez through a Triple Rectifier by Mesa Boogie . Simple win. A lot of times when I listen to remixes on OCRemix and I hear synth'd guitars I'm like "man that'd sound 10 x's better if it were real guitars." I'm not knockin' remixers usin' synth'd guitars, I promise. Many remixers just use what they have and that's fine and a lot of times it sounds fine, sometimes great.
Many instruments can be replicated through synths and VSTs but if you really want to get the authentic sound of the instrument, no matter which one it is, nothing will sound more authentic than the original instrument itself. Synths and VSTs will sound very very close to the original sound and that's the thing... it's close enough. Find the sound you want, if synths can do it, great. Don't fight with armies of effects, layers and patches just to prove a point that synth'd guitars can sound good... Getcha a Guitar!
I do think it's kind of funny that everybody kind of came down on Rose and the dude did exactly what Tensei-San & Rose said and got the exact sound he was looking for. That's the kind of help people look for on forums.