Are most games good?

[Veknoid_Outcast]

Mummelmann said:
Most games are mediocre, I'd say that about 30-40% of the games that I try are good in my opinion and then there are hundreds that you simply don't even want to try.
Then again; many games are objectively good even though I don't like them. But I still feel like the majority of games are mediocre, just as with music, movies and books, most broader entertainment is mediocre, but it's still entertainment.

Can you expand on that idea of objectively good? I know you can objectively measure things like frame rate, resolution, available modes, etc. But how do you judge gameplay without using your personal opinion?