noun
each person having their own favorite; everyone having their own bias
Describes a situation where different people support or favor different things, often in a lighthearted or accepting way. The word is a reduplication of ひいき (favoritism).
食べ物の好みはひいきびいきだから、どれが一番とは言えない。
Food preferences are a matter of personal taste, so you can't say which is the best.
どのチームを
Which team people support is a matter of personal preference.