Let me state my view why I hate MU.
1) LFC is the most successful club in English Football history. But MU kept saying that indeed they are the one. PLs go and count the no.of league tittle, European tittle, FA Cup, League Cup and UEFA Cup, Super Cup.
2) LFC player play football like a gentleman, with sporting behavior. Not much cheating and foul play. But MU is the best example to learn the opposite.
3) LFC won so much before 90 and we are all humble, (manager, player, fans) and MU dominate 90s and they are so arrogant.
This are the 3 main reasons for me to hate MU.
There is another 1 more important reason - I believe in God. That;s why I hate to deal with Devil.