Which gaming series has been the most inconsistent?
The other day I was having a discussion with someone about the Mega Man X series since I saw the collection at a gamestop. Another friend that was with me asked about the quality of the games, and I stated that the first three are excellent titles, while the other three are questionable. This lead into a general discussion about the varying degree in quality of the megaman franchise as a whole.
The short version of the discussion was that we realized the series has to be one of the most inconsistent franchises in all of gaming, some titles (X,MM2,Zero,Legends) are top tier quality games, while others are straight mediocre, and some are just outright bad (MMX7). I understand not every game in a franchise is going to be perfect, but there seems to be a serious lack of quality control in those titles.
After the conversation I was left wondering; is there any other series that has a more inconsistent level of quality than mega man?