Regards one of the above posts, I don't think any genuine Motherwell fan would have a leaning to either side, but it is possible to dislike one more than the other, as to be honest I think most people probably do for one reason or another.
I know that it is the accepted and perhaps safest thing, especially on forums like these and social media, to say "I hate both Old Firm clubs equally". It is slightly less acceptable but still acceptable to a degree to say "I hate them both but I hate Rangers more" but it is absolutely taboo in my experience to say "I hate Celtic more than Rangers". We've even seen it on this very thread itself as to why, a Motherwell fan saying that they "were getting strong vibes of Rangers being their big team". A Motherwell fan saying that about other Motherwell fans. That's ridiculous but it's the way it goes in this part of the world and it's another example of Celtic driven manipulation, because such is the hold that club have on society never mind football, it is now seen by many that to merely voice dislike of Celtic suggests underlying anti Catholic/Irish bigotry/racism. I think that that's fucking ludicrous when you stop and think about it but there it is anyway.
I think there are also a lot of football fans out there, decent people who are only interested in supporting their club who also feel the same way about Celtic but for the sake of a quiet life just say that they hate Rangers more or that they hate them both equally. It's a sad state of affairs but I get why they do it.
I've always said this, I don't like Rangers and find them as a club to have a weird, warped even attitude to life with their dated views, WATP mentality and their 'loving cup' etc. As a support I don't like some of the songs they sing but away from the games I find most of them are okay, if sometimes a bit thick.
Celtic on the other hand are a cancer of not just football but society as well and even the decent fans normally show their true colours eventually and show themselves up as obnoxious, paranoid, bigoted, hateful arseholes.
They are far, far worse than Rangers.