I'm with Jess - know two or the stimulus texts in depth, so you don't get thrown off. Physical journeys is pretty much good for Frost and Atwood (self-explanatory, if you read/brush up on the poems). Inner journeys is better with Atwood, since you can talk a whole lot more about it than you can with Frost (I swear, the amount of times I used metaphor in my trial response ...). Ivory Trail is really good for imaginative, or so I've heard on the grapevine, but whatevs, trav, whatevs.
I'm doing The Road Not Taken & Journey to the Interior for inner journeys. Preference on the former, but knowledge on the two is generally round and decent. -shrug-