there is 2 very similiar questions they ask:
1. which 2 texts do u think are best 2 be included...
2. with reference to only 2 texts, discuss which one you feel is the best to be included...
if you get the second, then following anti's advice should get you through fine. if, however, you get a question like 1, where they dont stipulate to talk about only 1 or 2 texts - then its important to talk about ALL of the texts. i know, it seems stupid, but thats one of the important things they look for. basically, what you do is talk about how each text presents the concept of journeys etc. then for each show how the text you have chosen as the 'best' does it better, or does it more appropriately. eg. Although text 2 uses____to bring this message concerning journeys across to the responder, the use of ________by the composers of text 3 emphasises and develops this concept even further, making a far more profound impact on the responder. Thus, text 3 is a far more appropriate text for inclusion in ______then text 2.