I quite liked both the Alien 3 and Resurrection comics, but SM's right - they're pretty average all told, and if I wasn't such a fan of the films and interested in seeing how the adaptations differ from them, I wouldn't give them a second thought. In fact I doubt I would've bothered at all.
As Xenomrph says - the first film's comic is very much the exception when it comes to comics adapting pre-existing material. I can't see the novel working satisfactorily as a comic at all. Too much of it was internal.