A matter of taste; something that depends on personal preference.
服の色は好き好きだから、気に入ったものを選べばいいよ。
Color preference for clothes is a matter of taste, so just choose what you like.
その映画が面白いかどうかは好き好きで、万人に受けるとは限らない。
Whether that movie is interesting is a matter of taste; it won't necessarily please everyone.
料理の味は好き好きだから、辛いのが苦手な人もいる。
Taste in food is a matter of preference, so some people don't like spicy food.