Doesn't really matter two hoots to any future employer which a/c you trained on. As said before, you should be able to jump into any SEP and fly it comfortably.
If you end up beiing buddied with another FI student, then the warrior is probably better as you end up back seating your buddy and learning just as much as a pax as you do when in the RHS. Down side is that you need to do the spinning in something else. Did my FI in a warrior and ended up doing the test in a 150 which I had the sum total of 2 hours in.