"Decent"? from in-game chat I've observed that most like to have some sort of easy mode simulator or one that you don't need to calculate anything (like the most used list in the removed one). When they try the flash version they tick everything and then it takes forever to get results or don't know how to use it all.
I think all or most guide makers use the flash version which also has updated version at http://www.settlerscombatsimulator.com/uk It also shows everything, is accurate and fast when used correctly.