cant speak for others...
but for me, i had tons of trouble with LR and no trouble with games because LR didnt really seem to be about logic as it is about making sense. some of you might say that theyre the same thing, but i would disagree.
with games, there is a right and a wrong answer. there is no in-between. with LR questions, there were always areas where certain things can be interpreted within a shade of gray. i had trouble because i kept second guessing myself after narrowing all the choices down to the 2 of 5 rule (always 2 seemingly good answers out of 5). both answers seem to be logical, but i couldnt make one more sensible than the other unless you really thought about every word in the damn stimulus.
logic games are easier because the only problem is in the setup. once you have everything set up, its easier than completing a jigsaw puzzles with only 2 pieces. a lot of people have problems with this because they think that if there are 5 rules, thats all there is. if you take those 5 rules and extrapolate, you can sometimes make those 5 rules into 8 or 9 rules.
my 2 cents...im pretty sure it wont help clarify, but its just something to think about...or flame me about.