I mean I don't do either but I think EEX1/2 would be a lot more challenging than SOR2 because from what I've heard, SOR 2 is pretty much a rote learning or subject based off memorisation and putting that content into essays and short answers, all that sort of stuff. EEX1 would obviously go beyond rote learning/memorisation, I mean yeah you can remember essays but you will not perform well if you do not understand the level of depth or critical thinking required within EEX1 and it's probably best if you enjoy English, like I mean enjoy English and would be great if you performed well in English too. It's a lot of work for a 1 unit subject but it's rewarding if done well, has pretty good scaling and the classes are generally very small (only a couple of kids in my school do it) so everyone knows each other well and gets along with the teacher.