I cant say I've ever even considered liking another teams jersey. Some of the ones mentioned here wouldn't make my list.
The Jordan bulls black(and thise reds) are iconic.
I like Boston green, I think they had some technical looking ones a few years ago that I like the font and layout.
I like that silhouette of the GG bridge on the modern era dubs jerseys.
Those Royals vertical stripes are pretty much my all time favorite.