[/quote]

Since you're only up to 2 so far, I thought I'd add my bit. I not flown one of the 'big' sims yet, but I've read that if your plane is not trimmed and set up like the one in the sim, they aren't going to fly the same anyway.
[/quote]

Agreed. This is IMO the biggest problem with sims. I have about 12 flyable planes. I also have two different sims with a total near 50 planes. None of the sim planes fly the same as any of my real ones. Some are closer than others but none are the same. This makes it a bit tricky when spending large amounts of time on a sim trying to do a trick only to find your model flys different. Having said that the sim is a helpful tool in learning to fly. Just don't expect perfection.
P.S Any of the more well known sims would be fine.