Well, if you're looking for one dvd with a few scenes, my favoite is Big Bottom Sadie from Elegant Angel.
Although they are good scenes, and there are more than one featuring her, it's more of a quantity rather than quality thing. She's done better scenes in other movies, but generally not more than one per movie. :) However, the behind the scenes feature of Big Bottom Sadie is, in my opinion even better than the movie, and it's practically all Jenna, all the time.
I can't speak to her Jill Kelly Prod. work though.
Her scenes in Flesh Hunter 1, 2 & 3 (Jenna & Aurora Snow *wow*) are very hot and for Jenna Fans must see IMO. Trained Teens 2 (incl. Sabrine Mau, Melissa Milano & Fiona, I never see her again) is also very great!
If you like Interactive-Dvd´s then maybe "My Sex Kitten" from Jill Kelly Productions with Jenna is the right DVD for you.
There is a guy on Ebay selling compilation DVDs of various porn stars and I bought volume 1 of Jenna Haze that has complete scenes from Flesh Hunter 1, 2 & 3 and Trained Teens 2 for $15. Not a bad deal if you ask me.
Just to be clear... I didn't pick my favorite Jenna Haze scene in my first post. I merely picked my favorite movie in which she is featured in more than one straight scenes... :)
My favorite individual Jenna Haze scene... Man there are a lot of 'em. I like Service Animals #4, I like Flesh Hunter #1, I like Flesh Hunter #2, I like 18 & Nasty #24. Hell, I even liked her virtual stint in My Sex Kitten. I'm not sure I can pick a favorite among those. :) She's a little girl with a great attitude. That's why I like her.
I still think Big Bottom Sadie is the best option for the most Jenna on one DVD, though.