I think it's far too early to judge their personalities because it is only the first act, which isn't even fully available to us, and all of them are complete strangers with the only mutual goal of getting rid of the tadpole that seems to be binding them. So naturally their personalities right now are impossible to judge because they're untrustworthy, distanced and don't even plan on sticking around once they get the tadpole out. Obviously this is just the surface of their personality, but I have no doubt they will vastly improve as we go through the game.
Personally so far I really enjoy Shadowheart and Lae'zel, both funny in their own ways. Wyll and Gale are interesting too, but Astarion is a mixed bag for me and I'll need to see more before I can say whether I like him or not.
I took it all entirely seriously and never picked up that it was supposed to be funnier than your average fantasy game.
I thought the same. I found DOS1 light in tone, but never a funny comedy as some people try to describe it. As for DOS2 for me overall it was quite serious, but naturally with light moments here and there. Overall I found the setting and mood of the games fitting.
