Self explanatory enough I guess but there are mods like Imoens and Nalias romance that are included, but as far as I know Nalia is only for romance but Imoen actually adds extra banter for her even if you don't decide to romance her so she would be a bigger mod then nalia would be for this reason.

Edit: I overlooked a few mistakes for some of the questions I was meant to pick 3 choices for Most popular and funniest NPC's

Poll Information
This poll contains 6 question(s). 12 user(s) have voted.
You may not view the results of this poll without voting.

Poll Results: Most popular mod NPC'S (12 votes.)

Most popular mod NPC'S (Choose 1)
* Imoen - 42% (5)
* Nalia - 0% (0)
* Sime - 0% (0)
* Tashia - 17% (2)
* Kelsey - 25% (3)
* Solaufein - 17% (2)
* Valygar - 0% (0)
* Tomas - 0% (0)
* Yoshimo - 0% (0)

Most Interesting NPC's (personality wise NOT sexually) (Choose 3)
* Imoen - 42% (5)
* Nalia - 0% (0)
* Sime - 8% (1)
* Tashia - 42% (5)
* Kelsey - 33% (4)
* Solaufein - 33% (4)
* Valygar - 0% (0)
* Tomas - 0% (0)
* Yoshimo - 25% (3)

Most powerful NPC's (Choose 3)
* Imoen - 17% (2)
* Nalia - 0% (0)
* Sime - 0% (0)
* Tashia - 33% (4)
* Kelsey - 25% (3)
* Solaufein - 83% (10)
* Valygar - 0% (0)
* Tomas - 0% (0)
* Yoshimo - 8% (1)

Funniest NPC's (Choose 1)
* Imoen - 33% (4)
* Nalia - 0% (0)
* Sime - 0% (0)
* Tashia - 17% (2)
* Kelsey - 33% (4)
* Solaufein - 8% (1)
* Valygar - 0% (0)
* Tomas - 0% (0)
* Yoshimo - 8% (1)

Best romance (male) (Choose 1)
* Kelsey - 58% (7)
* Solaufein - 33% (4)
* Valygar - 0% (0)
* Yoshimo - 8% (1)

Best Romance (female) (Choose 1)
* Imoen - 50% (6)
* Nalia - 8% (1)
* Sime - 0% (0)
* Tashia - 42% (5)

You didn't include Chloe?!?

My favourite would be Kachiko from Tortured Souls, but it doesn't seem to be there. Strange, since Sime is.

yes well sorry... I haven't expirienced everything yet since there are just so many mods it's like a bloody hornets nest.