In MSFS, it seems that once you set the weather, you can't reset or adjust the parameters after you've begun the flight.
Sure you can...you can even setup a separate instructor station with MS Sim.
It is a funny debate. I wouldn't be suprised to find out that the "guts" of the programs where reused by each company, but if some of you can tell the difference, I won't dispute your claim.
I can say I have used the ms sim the most but have use a pcatd also. To me, same-same...neither are actual ac, both have the most important features, the most important of all (to me) being the timing factor and task management required. As far as whether or not you get exact readings and responses off gauges I personally couldn't care less. You don't even get the same readings from ac to ac so why would I care on a simulator? If money is not a factor, buy'em all and compare for yourself. If it is a factor go with MS.