Do you have a list of other games you like? These two games are not very similar at all to compare. Do you have a theme preference? if your not a big Indiana Jones fan I think you might have more fun on IM. I am personally not an IM fan and I love IJ so I would pick that one but I also tend to prefer simpler games. The newer games like IM don't make it super obvious what your trying to do while the 90's games are more obvious(my opinion). I would say that IM has a more exciting feel and more adrenaline, while IJ is more of a story and kinda fun gameplay. Both are awesome games.