To me, the set that clashes the most is #3, [name]Elizabeth[/name] and [name]Lysander[/name]. A classic, well-known and beloved name paired with an equally classic, but not-so-well-known and probably-not-too-beloved name. [name]Lysander[/name] makes me think of a male ballet dancer, after the obvious reminder of “A Midsummer [name]Night[/name]'s [name]Dream[/name]”.
I actually think set #5, [name]Kelly[/name] and [name]Ryan[/name], clashes the least, but I’d name the girl [name]Kelly[/name] and the boy [name]Ryan[/name]. I don’t like boys’ names on girls, and [name]Kelly[/name] is almost exclusively a girls’ name these days. There would be terrible confusion about who’s the boy and who’s the girl.
[name]Set[/name] #1, [name]Ingrid[/name], [name]Seamus[/name] and [name]Emilio[/name], is a really interesting combo. I think it could work for a family with multiple ancestry, who want to honor each different nationality. So of course, clearly this family is Scandinavian, Irish and Spanish in origin. A great way to commemorate one’s ancestors.
[name]Set[/name] #4, [name]Mabel[/name], [name]Nancy[/name] and [name]Jaden[/name]…sounds like Grandma, Mom and son. I know a [name]Nancy[/name] and she is a really cool lady, though admittedly her name isn’t exactly one of my favorites. [name]Mabel[/name] is unquestionably a senior citizen, no matter what they said on “Mad About You”. [name]Jaden[/name] is too trendy and probably overused anyway.
[name]Set[/name] #2, [name]Mackenzie[/name] and [name]Catherine[/name], appeals to me the least. I prefer the latter name spelled with a K (to me, most hard-C girls’ names look better with a K instead). I like [name]Mackenzie[/name] okay, but it’s a surname. My dad grew up with a guy named [name]MacKenzie[/name] (surname) and we’ve been friends through two generations, and that’s what comes to my mind every time I see the name, no matter how it’s spelled. (Their younger daughter named her little girl [name]Mackenzie[/name], or some spelling variant, I’m not sure which one; but she was honoring her maiden name, not really conforming to the trend.) As another poster said, trendy/popular vs. classic/less popular just doesn’t fly.
[name]Just[/name] my thoughts… 