I have seen lots of posts here by various people supporting both the Denise set and the Boye set. I can't express an opinion about the Denise set as I have never used them, but I have had the Boye Needlemaster set for about two months and I love them.
I haven't had problems with yarn snagging at the joins; as long as they are joined tightly and correctly, there's no problem. I like them well enough that I'm not looking around for other/better needles at all now.
Just my humble opinion.
I'm sure others will respond with their individual preferences.