Forbidden World aka. Mutant is one of my favorite (and guilty pleasure as it is). It has absolutely great lead character and babes. Some scenes are decent too.
In Galaxy of Terrors the crew are bunch of halfwits, on pair with Prometheus. It has biggest production value ( and Lifeforce), wih really stunning sets, but that's all I can say about it being good. Well actually gigant maggot rape scene is good too.