I second Words Worth. While I'm not a fan of rape and the like, Kisaku, Shusaku and Isaku all had good art and animation and the plots were decent if not a little twisted.
>>19
Everything mentioned here is good between plots, animation and artwork.
Koihime was a cute, lighthearted hentai story but I felt the art and animation were lacking.
G-Spot Express was decent and in the same vein as Midnight Sleazy Train.
Angel Core was pretty good although it had a pretty nasty torture/rape scene.
La Blue Girl Returns was really good as far as art, animation and plot were concerned. I just felt the sex scenes were all really short or interrupted.
Stringendo and Lady Innocent are really good as far as art and animation go but the plots are kind of thin.
That's about all I can think about ATM.