To be clear, I was specifically addressing the claim that Hyrule Warriors isn't a Zelda game, that it doesn't belong in the series. That particular post wasn't really focused on whether we can or should compare HW to SS. Having said that, I agree with
@Zora the Greek. I like comparing things, and I think comparing HW to SS is both possible and fun. Yes, they're not cut from the same cloth, and yes, they were made with different goals in mind, but why should that mean I can't enjoy listing comparisons between?
Speaking of... last time I said HW was better in terms of replayability, but that might only be true in the short term. HW definitely lasts longer and keeps me involved for a much longer period of time, but what about drawback? When I finally finish the game and put it down, will it be able to pull me back in after a few years of not touching it? In this, I think it could be argued that SS may have the upper hand. Skyward Sword, by virtue of its characters, plots, and lore, is a story that I know I will want to experience again and again (even if it is years between each "again"). Hyrule Warriors, however, only has its gameplay to bring someone back after all weapons, hearts, and A-ranks have been achieved. Its gameplay is definitely good and might even prompt some returns over the years, but I think SS has the relatively stronger pull-back.