I'm considering one of these for lunch tomorrow. From what I've seen these two sandwiches are very similar. Both seem to leverage a marbled grilled rye bread against a beefy center. I am leaning towards to the Reuben due to the inclusion of Russian dressing, but the carmelized onions do make a compelling case. For those of you who have had experience with these two similar, but strikingly different sandwiches: what should I get?