Ok, the best deep kissing you have out of all your vids has got to be Samantha and Karlie. (it's also the third pic on the right in the KissMe Girl logo just to emphasize its worthiness)
If you could get them together but lying down on a bed and doing the slow deep kissing, and some good thigh grinding, thet would be epic!
I also think that Bobbi 'gets it' when it comes to deep kissing but most of her vids are of the high energy kissing and not the slow deep kissing.
I second the thoughts expressed here about Bobbi Star, usually much too aggressive and lacking on the sensual side. She bores me with that to be honest...