Those are them... not-musical people... Me - I like BOTH kinds of music.. Country AND Western! No twang = not good.
The twang of the vocals. Unless of course you're talking about Patsy Cline. I love PC.
Which would be why I'm not a fan...
This is another vote for twang. I think, for me, sometimes the twang and drawwwnn ouut vowels distract from the song's melody and story. Someone else mentioned a yodeling sound and that's not attractive to me either. I respect it for what it is but find it difficult to listen to.
The twang. The sound. The style. I like something I can bang my head to. Something I can scream along to. Not yodeling.
I don't know, but it doesn't bother me. I guess I kind of grew up on that genre too.