I beat the SoA and now its time for ToB! But there's a problem! My party: Minsc, Aerie, Anomen, Nalia, Jan. There's two new persons who are waiting to join me; Saverok and Imoen. Should I pick them? Well, I can take Imo for Nali but Nali's level is much higher. I cant kick Aerie she's my love. Jan is my jester, joker. Anomen is cleric/fighter. He's though with GM in hammer. Minsc is my favourite NPC. I cant decide. any ideas? Which party is the best/funny/more quests dialogues interesting things party? I dont want to miss Imoen and Sarevok dialogue plots? are they worth it?

I'd go for Imoen over Nalia anytime, but that's just me ;)
Dependes on who you like really, since you don't have to worry much about levels in ToB..
As for Sarevok, depends on what class you play, but you might want him over Minsc, since he's a better fighter..