From the women, Karlach seems the most like the kind of woman I'd be attracted to under normal circumstances; she's practical, pragmatic, has a dry sense of humour and isn't afraid to show genuine gratitude or accept help when she needs it.
From the men, Gale is another figure in a line of various video game characters that have shown me that I very much have a 'type' when it comes to men, and it involves a strong intellect, a sharp wit and a dry humour that avoids actively insulting people.
At least, in video games - I'm much more take-folks-as-they-are for men, women and all types between, in my real life - there's just traits and behaviours I avoid (though Shadow, Wyll, Astarion and Lae'zel each invoke enough of those particular traits that they would not be considered options for me regardless).
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By the by, halflings are small, and they will generally trend towards higher pitched voices as a result - especially in the traditionally feminine register - but there's still not much chance of them being taken for anything other than a mature adult unless they're actively trying not to be... and even then, their size and build ensures that there's no real possibility of them being mistaken or taken for a human child - they're actually Too Small to be mistaken as human children at anything more than a hurried glance.
