I haven't come across many twins period. Let alone twins with names that I've detested.
If I had to think hard though I'd pick little
Sophie and
Chloe who I met when they were 5 and would be about 8 now I think...
Anyway, the reason they spring to mind is because individually they're popular names (I like
Sophie ever so slightly, prefer
Sophia, but I don't like
Chloe and never have). Together however they're like a popular overload!
On a side note; the best twins (naming wise) I've ever met were a b/g set called
Devon and
Eleanor.
http://www.behindthename.com/pnl/117870?sort=gender&pop=ew^Top 2 =
Alice and
Ivy // Bottom 2 =
Tanner and
Indiana