I wouldn't dispute point A at all. For point B, I don't often see CFL rookies getting tons of hype before they've played a minute of meaningful football in the league. Canadians take a while to season, usually. And Americans don't get much either. Now, if Giguere starts the season hot, I'll be quite willing to buy into the hype.
I get wanting to temper expectations, but you seem to be one of the few who don't want to believe the hype surrounding him. I didn't buy into either until I saw what he could do. Now that I have seen him in person, I'd be very surprised if he didn't make a major impact this season. You seem like a reasonable dude, and I'm sure if Giguère does prove to be as good as everyone thinks that you'll have no problems saying so, but that doesn't mean you have to keep pointing out that he has yet to do anything in the CFL. Everyone knows he's done nothing, but that's not going to stop fans (especially those that have seen him in person at camp and in games) from talking him up. You seem to want to stifle the enthusiasm around Giguère and I really don't get it.
I don't want to stifle anyone's enthusiasm. I guess from a personal standpoint, I dislike seeing players receive accolades before they've done anything to warrant said accolades. That's just a personal preference. I have no doubt that Giguere will succeed -- he's too talented not to make an impact. But this thread, as I understand it, is about trying to determine an [i]already established[/i] Big Three, not projecting a Big Three based on our own hopes for our team. Using the NBA analogy brought up by the OP, it would be weird if the Heat's Big Three were LeBron James, Chris Bosh, and then a completely unproven rookie player who had spent the past three years not even playing regular ball. The Heat's Big Three are all proven stars. So that was my basis for the earlier comment.
If you pushed me to name a Big Three, I'd probably go with any of the following:
Lulay, Simon, Bruce
Burris, Fantuz, Cobourne
Calvillo, Whitaker, Richardson