최애 /choe-ae/
All-time favorite (bias)
Short for '최고로 애정하는' (the one you love the most). Your absolute favorite — most commonly an idol or fictional character. Equivalent to 'ult bias' in English K-pop fandom.
Examples
내 최애는 뷔야
My all-time fave is V
최애 앨범 나왔다!!!
My fave just dropped a new album!!!