With the birth imminent, I've gone through the thread up until the post before mine, and tallied up the amount of times each name was suggested. Here are the top ten in each gender:
Boys:
Carl/Karl - 73 mentions, clear front-runner
Gustaf/Gustav - 46 mentions
Oscar/Oskar - 38 mentions
Daniel - 32 mentions
Johan/John - 29 mentions
Olaf/Olof/Oluf/Olav - 28 mentions
Eric/Erik - 19 mentions
Bertil - 17 mentions
Frederik/Fredrik - 14 mentions
Victor - 11 mentions
Girls:
Christina/Kristina - 40 mentions
Silvia - 29 mentions
Désirée - 28 mentions
Louise/Louisa/Lovisa - 28 mentions
Victoria - 26 mentions
Margaretha/Margareta/Margaret/Margrethe/Margrete - 23 mentions
Lilian/Lillian/Liliana - 22 mentions
Sybilla/Sibylla - 17 mentions
Ingrid - 17 mentions
Anna/Anne - 15 mentions
--
And my opinions on the top ten names:
Boys:
Carl/Karl - likely to be used as a combination first name (ie. Carl Johan, Carl Gustaf), if it isn't used as a first name, it will be one of the middle names
Gustaf/Gustav - likely middle name if 'Carl' isn't used in any form
Oscar/Oskar - solid choice for a first name, quite popular in Sweden, not too 'old-school', last heir was Oscar II who died in 1907 - this may work both for and against the name (for: has not been overused like Carl and Gustaf; against: not close enough to the main players today)
Daniel - 50-50 chance of being a middle name, depending on which names are used for the middle
Johan/John - Johan most likely, as a combination first name (ie. Carl Johan), if not used as combo unlikely as solitary middle name because of other possibilities
Olaf/Olof/Oluf/Olav - if used, will be Olof as a middle name for Daniel and Olle Westling
Eric/Erik - possibility for first name only, won't be a middle name
Bertil - has middle name potential, but will depend on which other names are used as first name/combination first name/middle name
Frederik/Fredrik - unlikely IMO
Victor - even less likely than Frederik/Fredrik
My overall preference: Carl Johan Olof Bertil / Oscar Gustaf Bertil Gunnar
Girls:
Christina/Kristina - likely as a first name, after Queen Christina (and also Princess Christina), spelt with a Ch, possibly not considered to avoid a 'Christian/Christina' similarity with future Regnants
Silvia - definately a middle name candidate
Désirée - good chance for first name, unless considered too 'old-fashioned'
Louise/Louisa/Lovisa - quite populous within Swedish royal history, I prefer Lovisa out of the three when adapting to Sweden, first name potential over middle because of other possibilities
Victoria - 50-50 as a middle name, but IMO unlikely because of other possibilities available
Margaretha/Margareta/Margaret/Margrethe/Margrete - 23 mentions
Lilian/Lillian/Liliana - spelt with one 'L', one of my top guesses for a middle name honouring Princess Lilian
Sybilla/Sibylla - while this is the name of Victoria's grandmother (Carl Gustaf's mother), I find it very, very unlikely this will be used at all; it does not feature in either Victoria or Madeleine's names, which is quite telling
Ingrid - if used, will only be a middle name to avoid having two future Queens Regnant named Ingrid
Anna/Anne - middle name potential, after both Daniel's mother and sister
My overall preference: Christina Silvia Lilian Anna / Lovisa Anna Lilian Silvia