I would go with the Rotofab without question. There are no negatives associated with it and it can be used with LS7 MAFs, superchargers and larger TBs whereas the OTR CAIs are much more limited.
I will be going with your tuning but i was wondering what set up you believe i will get better performance from in your experience i was going to go with obx headers and either a rotofab or a vararam otr.My only fear about the otr is the hydrolock problem.