I have no skin in either of them. I approached it the same way I buy PC hardware or electronics. Number of reviews, complaints, use cases. If one person complains about a specific problem, that is not really relevant. If the complaint becomes a recurring theme, that is relevant. I can't count the number of reviews, forum posts, etc I have read complaining about wet side failures. I have also read in multiple places that could be caused by misalignment. That said, I don't want a pump that is so easily misaligned that I can find a high number of failures attributed to that problem.