Mine is Samantha Saint.

In their prime I'd say:

    1) Georgia Peach-I love blondes, the nice thickness and her willingness to do DP, gangbangs, and nice personality
    2) Lauren Phoenix-this is close, but I like tall girls too (I know strange contrast to Georgia who's only about 5'3") her smarts and also love of DP's and gangbangs (and her CIM is awesome too).
   
Other mentions/other loves-Gia Paloma, Audrey Hollander, Sasha Knox, Sara Jay, Alexis Golden, Haley Paige (RIP), Eva Angelina, Delilah Stone, Lisa Sparxxxx......you can tell it's hard to pick just two let alone 1.

Teagan Preasley, kayden kross and lexi belle

i love them all..trying to pick a favorite porn star is like trying to pick your favorite gold bar out of the Fort Knox vault..one looks just as good as the next..

It is nearly impossible to pick just one.  I first was introduced to porn by Ginger Lynn and she was my fav for many years.  In my mid 20's, Jill Kelly became my fav with a close 2nd to Asia Carrera.  Today, there are way to many hot ones.  However, Chanel Preston is my fav.  I met her and follow her on Twitter.  She is incredibly sexy, naughty, beautiful and intelligent.  She also takes the time to respond to several of my tweets.  Samantha Saint would be #2 with several honorable mentions.

I'm fickle.  It seems like every few weeks I get a new crush on a PS.  The latest would be Bonnie Rotten.  Before that Rachel Roxxx.  Before her Asa Akira.  Before her Annmarie Rios.  Before her Carmen Luvana.  And so it goes.  Every time I think I've found the ultimate, another one comes along.  Such is the nature of porn.

Racquel Darrian
Nikki Dial
PJ Sparxx

So tough to narrow it down to one, so instead here is my "All-star Pornstar First team"

Shayla Styles
Jasmine Byrne
Nina Hartley
Monica Santiago/Santhiago
Roxy Reynolds

Honorable Mention

Ava Devine: When she had really huge boobs
(Linda) Friday

Old school:

Ashlyn Gere
Victoria Paris
Tracey Adams

These days:
Chelsie Rae
Brooke Adams
Phoenix Marie
Riley Evans
Brianna Love

Sandra scream, Holly body, Crystal gold, rocky roads, in that order but honorable mention for the one and only Julia Ann

that gal really knows how to suck a dick !!!

I agree, and she likes loads on her big tits!!