While the cruise lines remain fairly consensus long picks on the sell-side, particularly Royal Caribbean (RCL) and Norwegian Cruise Line (NCLH), the consensus is not always wrong, Deutsche Bank analyst Chris Woronka tells investors in a research note. As the retail sector continues to fight disintermediation from online, gaming has to deal with China macro concerns, and lodging confronts concerns about decelerating corporate room demand, the cruise industry's "wall of worry" appears to be much more manageable to navigate, says the analyst. He sees the industry benefiting from positioning in 2019. Woronka thinks Royal and Norwegian offer the best risk/rewards and names Norwegian his top pick for 2019.