with sites like redtube and youporn, the amount of porn readily available is astronomical and I am on these sites very often, also a lot with the wife.
does anyone have a 'favourite' video from these websites, the one that me and the missus keep returning to it redtube number 48645, it really gets both our juices flowing!!
Don't know really - have about 3-400 downloaded on my X-hamster site. Once you see them once... a bit like a book really - it might be great, but you've read it...
I don't know about whether it's on your two sites but on userporn there's Manhandled 4 which just never seems to get old for me. It wasn't something I expected to like as much as I did (it has this weird flashlight filming but oh my, only added to it). An old favourite 
'The Gangbang of Bonnie Rotten'
It's so intense and sensual, it's my favourite scene :)
a night with my wife is better than porn. Its not as accessible