I'd recommend the MCC course at London Metropolitan Uni. It's a good course conducted on a Kingair 200 - you also get a great deal if you can fill a spare place at the last minute.
I think spending extra to fly a jet sim is a waste for the MCC - much better to get some jet sim time when you have a sim check coming up... remember it could be months or years after MCC before you get that elusive interview!