So for example, if someone said Konata was their waifu, you're asking if they would also like characters like Suzumiya Haruhi, Dende and Misa Amane since they're all voiced by Aya Hirano?
I would say yes, I do like some characters who are voice acted by my waifu's Seiyu but I would say no if it was because they were voiced by the Seiyu. That is not to say the Seiyu had no part in me liking the character but I there are other factors I judge in a character before the person behind the voice.
That being said, if Konata was indeed my waifu(she is not), I do indeed like same voiced characters such as Suzumiya Haruhi, Katja Ekaterina and Shizu Shidou, all of which have outstanding personality and/or are involved in interesting and hilarious story.