My favorite studio is Digital Playground. I also like Evil Angel, and Elegant Angel. I love Razordolls studios.
My favorite stars would be Belladonna, The Milton Twins, Raven Riley, Angelina Armani,Riley Steele, Stoya, Riley Mason, Katsuni.
My favorite directors are Joone and Gary Orona.
It depends on what I am in the mood for. I do like the All-Sex movies (movies without a plot that just feature sex), sometimes on a specific sex act. I really like the box sets for these. Yeah its just sex without plot, but I really like it. Plus you get a 10 disc 50 hour set and you have a lot of fun/time going through the set. (Some sets repeat scenes, which sucks)
As for parodies, I have liked all of them that I have seen so far, and I would love to buy more. I would really like to get a hold of the Avatar parody.
as for Hentai, I have not had the chance to buy much of it, but I do have a copy of Dragon Pink (all episodes, 1, 2, & 3), Sailor and the 7 Ballz, Masquerade (Pretty soft core). There are a lot of Hentai movies I would love to watch, La Blue Girl, Bible Black.
I am more into the Hardcore porn than softcore. I am not as much into the BDSM but a lot are.
I also like features that are Internet-to-DVD, for example The Milton Twins and Bang Bus.
Here is the rundown of the genre's that I frequent when making a choice, you can probably tell by the list I am game for just about anything. I am not into Gay Porn or Guys so I do not partake, but there are a lot that are.
18+teen
Anal
Asian
Cream Pie
Gang Bang
Interactive
Spoofs & Parodies
Point of View (POV)
Pregnant
Interracial
Big Butt
Facials
Hand Jobs
Blowjobs
Reverse Gangbang
Ebony
Historical/Period Piece
Sci-Fi
Twins
Tattoo
Water Play
Gaping
Double Penetration
Squirting
__________
Some of those I do not own but My curiosity gets me all the time.