You probably know this one already, but 'choose subjects you enjoy'
From the sound of your title though, you're not gonna enjoy any but change it slightly to - 'choose subjects you
hate less'
In this case you might want to pick the one with more of your friends? I know it kinda goes against the whole 'dont pick it because of peer pressure' thing, but I have to admit that the people I do EL with make it so much more enjoyable. I personally didn't pick it because of that reason (In fact, most of them didn't do 1&2 and went into 3&4, making them the ones giving into peer pressure) but my point is that:
Enjoyable = more motivation = more chance of a higher score
In terms of scaling, EL is better. This means if you do well, you will be rewarded.