Sure, but I can say that melody is important to me and I'm not interested in music that doesn't have a lot of melody or has less melody in certain aspects. Like, I would not want to listen to an album that was all drums, or an album where the drums were the lead instrument and all the other instruments just rhythmically followed the drums with little to no melody. But not liking those albums wouldn't mean I don't like drums. I like drums when they are a complement to other instruments. I don't like them when they play an outsized role to the detriment of other elements, like melody.
For sure, but that's about the balance of different elements in the music as a whole, rather than the vocals themselves. Lots of bands that mostly/entirely use harsh vocals have extremely melodic music going on.
Besides which, lots of bands that use clean vocals have no interesting sense of melody.
But balance is my point. I'm not one of the people who is completely anti-harsh-vocals, but what I don't like is when the whole album or most of the album is harsh vocals, because that quickly gets monotonous and annoying. I like the use of harsh vocals to punctuate certain points in the music, but if it's the whole thing, it loses its ability to punctuate and now it's just amelodic vocals where there very well could be melodic ones (and there is little reason, from my perspective, not to have melodic ones).
To go back again to drums, having a long complicated drum fill is a great way to punctuate certain points in the music, but if you do a long complicated drum fill every 20 seconds, it loses its ability to punctuate and now it's just interrupting the melodic parts to do something amelodic that is no longer really having much effect. It would become monotonous.
This is all my opinion and my preference. But I really do like growls so much more the more selectively they're used, to emphasize certain parts.
As for bands that have clean vocals but no interesting sense of melody, I don't really have any reason to be interested in them.