An example of subjective- "He is the best singer ever!" The above is written as an opinion, he is only "the best singer" to someone who likes the music. Subjective is not impartial. It is based on somebody's opinion or feelings rather than on facts or evidence. More examples:
I think (opinion) apples are nasty fruit.
I think apples are the best fruit ever!
Nobody in their right mind listens to rap music.
Rap music has a great beat, everyone should listen.
As you can see all of the above are people's opinion. One person may say one thing about a certain topic, another may say something compleatly different about the exact same issue.