I am still not through the first one. I mean the main story is long over but I haven't visited all places yet and there are probably still a few minor quests somewhere, plus the alien abduction add-on.
So I am still having fun with it, just exploring and kicking some ass
I am not sure I would make the effort to replay though, even if it would be interesting to see how differently things work out when I am no helpful angel

so i never did the alien abduction or that other quest, but still got all the quest achievements, but not the alternative alignment ones which is the main reason i wanted to replay it again. i might pick it up again and download the extra content, but i think i'll be too rusty at it and i've fallen out of love with it after DA and ME2 came out. i think i'm just too much of a bioware fanboy, i never seem to be able to replay bethesda games, perhaps it's because the first playthrough is so long and not quite as charming, plus there's no party to mix around with (in oblivion and fallout 3 anyway)