When it comes to my "favorite taxa", I love all life (so long as it's not directly causing me suffering). I love evolution. My least favorite taxa is probably homosapien (but there are exceptions) followed the pets of homosapiens because they are just as destructive by no fault of their own but because of humans. Especially cats (with exceptions). I fear mountain lions and the personality of cats.
I used to hate Steller's Jay's but then I realized they were only annoying when domestic cats were around. Now I love them.