Games 1 and 4 are generally the easiest and very rarely the hardest. I would recommend always doing them first. It shouldn't be that difficult to ascertain whether game 2 or game 3 will be more difficult after a quick glance. You don't have to read the entire stimulus; just look at the rules. Linear and sequencing games are the easiest for most people. Do those. If it's between a grouping and a pattern/mapping game, pick the one with which you generally feel more comfortable.
Well, I am about to take the October lsat and I have been scoring pretty well on the practice tests.in regard to the game section, I personally find it a waste of time to try to figure out which is easiest. You can lose entirely too much time trying to figure it out. I go in order and if something is too difficult, I move on.