randommaster said:
Navi was annoying...sometimes, but Tatl was completely useless.
The problem with Navi was that she was useless too, she was just really annoying at the same time. I actually liked reading her dialog, but she never said anything that wasn't a complete no brainer, and the things that you actually needed to know, like how to get a lot of pieces of heart and such, she never said anything about. Personally, I never needed Navi to tell me how to solve puzzles or beat bosses or anything, including in the water temple, if Navi never was in OoT I wouldn't have missed her in any way.
Tatl on the other hand practically wasn't in Majora's and wasn't helpful at all when she was, is ironic since in Majora's Mask if you didn't have a guide you were pretty much screwed, especially if you're the find and do everything type. The difference with Tatl is that she wasn't helpful, but also wasn't annoying either, in fact I hardly even noticed that she was ever there after a while, so she's easily better than Navi.
In a nutshell, both cases they get it wrong, Navi very annoying and useless, Tatl useless but also not there. Unlike these two a good sidekick should be very useful, but you practically don't know they exist unless they appear in a cutscene or you need a tip, Midna is the perfect example of just such a sidekick.