3. B'elanna: I think Dawson is criminally underrated by some fans performance-wise. Yes, I agree, the scripts she was given weren't always stellar but the actress did the absolute best she could with them. I find Torres so likeable and I particularly appreciate the way she somewhat became a vehicle for mental health issues in Trek. Also Paris/Torres is my favourite Trek romance.
Agreed with everything you say about B'elanna. You basically listed all the reasons why she's my second favourite character on Voyager. THE favourite if you only include the women on the show. I also liked how she ended up embracing her Klingon side like someone else mentioned.