I am a little agitated by Tiso's comments which seem to be anti-CC. Don't get me wrong, I don't play with "CC" all the time. I'm all for "innovative" creations that can hold their own and do well, even if there are some "CC" cards in that deck.
If you are a good player, you should be able to put together a deck and play it correctly such that it can handle other decks it faces. Obviously, card choices matter. Why run Granmarg when you can run Mobius, which offers more options? Why run
Giant Trunade +
Treasure Map, when you could simply use
Graceful Charity (assuming it will be unbanned in April)? Of course, the purpose of the deck matters. If you're running a Cyber Stein deck, GT and TM could be a viable option. Then again, you have to think about actual deck construction and the likelihood you'd draw them and the likelihood they can be dead cards for some duration of the duel.
Yes, some people are sheep. Just look at Bazoo and Return. It does well in an SJC and suddenly, many local duelists start building similar, if not the same decks. So these "sheep" have now started to play with another "CC" deck that's become well known via metagame.com. After a while, people will start to know that deck's strengths and weaknesses, and will use their own ideas to tweak it to their playstyle.
Then, because they're so used to playing with that deck, they become good at it, and use nothing else. Maybe that is what you are trying to get at. And for some people, that is true. They only use "CC". Why? Because they want to win, and it is a no brainer that good cards are better than sub par cards.
The reality of the current and possible future metagame, as well as the reality of effective deck construction determines the cut in which cards competitive players choose. You can go ahead and create "innovative" deck ideas on DeckStudio and simulate opening hands and the course of the duel, or you can actually build your "innovative" deck idea and test it against your friends who use "innovative" and/or "CC" decks. Unless your deck is stable enough, it's not going to pull off any (game breaking) combos on a consistent basis.