Here's how we classified your choices:
Sven - passé
Natalia - klassiskt excentrisk
Anders - passé
Marianne - passé
Leopold - klassiskt excentrisk
Agneta - passé
Malte - klassisk men ovanlig
Jasmine - modern men normal
Magne - klassisk men ovanlig
Sanna - modern men normal
Theodor - klassisk och normal
Astrid - klassisk och normal.
Freja is modern och normal,
Embla is modern och ovanlig, and
Idun modernt excentrisk - not really, perhaps, but the theme of this question was Old Norse names, and it's hard to find something modern excentric then ;)
Silas - modernt excentrisk
Rosa - passé
Olof - klassisk men ovanlig,
Gustav is klassisk och normal
Rosalind - klassiskt excentrisk
Erik - klassisk och normal.
Svante is modernt excentrisk - it is really more klassisk men ovanlig, but the theme here was Swedish kings, and once again, it's hard to find something modern excentric there ...
Saga - modern men normal
Kalle - modern och ovanlig
Elin - klassisk och normal,
Ulrika is passé,
Ellinor is klassiskt excentrisk - not that excentric either, but for the theme "common 70s names" ...
Vilde - modernt excentrisk. As a girls name it's Norwegian and a short form of Alvilde (see
Alfhild), as a boys name it's a new Swedish invention and means "wild" or "savage".
So you got:
Modernt excentrisk: 2
Modern och ovanlig: 1
Modern men normal: 3
Klassisk och normal: 4
Klassisk men ovanlig: 3
Klassiskt excentrisk: 3
Passé: 5