Sounds like saviboy has a job lined up with IBC Airways. I flew the metro, but never flew the Saab. I would have to say though, that the metro was one of the toughest turboprops that I've ever flown. Why it's single pilot beats me, but it shouldn't be.
The best part about flying a Saab is that when your feelin pressure on the big O-ring you have a place to ease it out. If the same thing happens in the Metro your emptying your flight case in a hurry and lining it with a trash bag. Just try flying around sitting on your flight case while it's on top of your seat in the weather and all the time talking to ATC without grunting. I vote for the Saab over the Pipe. And lets all remember that this is all predicated on a high fiber diet. If you've been knocking back Taquila the night before all of the rules change. In situations like that, as a precaution you'll be lining your flight case just to fart.
The Texas tampon is one of the hardest a/c I have ever flown. Yes, once you get some time in it, it gets easier but no matter what, it is trying when it loads on ice and you are shooting 190' below minimums single pilot. The SAAB doesn't hold a candle to the pipe, it's way to stable. If I had a choice, I'd pick the lawn dart anyday, it makes you a real dog.
The work load on a Saab is reduced greatly with the auto-pilot. When things are going down the crapper you can rely on George. In the metro, you are on your own. However, if an interveiw sim eval is on the horizon, your scan will never be better after coming out of a metro.
If you are talking about learning the airplane, the Metro is easier to learn. If you are talking about flying an airplane, the SAAB is easier to fly.
I'd keep this in mind, heavy airplanes look better to some employers, but then again so does single pilot flying. However, turboprop PIC time is the thing to get. So, if you are talking left seat of a Metro or right seat in a Saab, take the metro. In fact, take the aircraft that gets you to the left seat the quickest. If you are going straight into the left seat of the Saab than take it.