I gotta agree with Bruno here, my favorite is 2, because (for me at least) its simply more glamour. I, for one, am not at all a fan of so-called "realism"... Mommy porn for me does not mean saggy-boobs-veiny-body porn, or even what's called "MILF" porn on pornhub, i.e. porn with middle-aged porn actresses now paying for their years of cocaine and booze partying, with sillicon implants falling down to belly level, and sun-burned, dried-up skin.
Mommy porn for me is simply the best way to fantasize on a particular type of sex relationship: maternal yet corrupting, sinful and totally irresponsible, soothing, all-forgiving, loving, etc. But to each one his own, of course, I'm not here to argue with anyone...
So all this to say I'd love to see "unrealistic" mommy porn, with female 3D models looking like they're in their 20s, but dressed, manicured, etc. so as to make them look classy and "adult", and male 3D models as young as F95 allows it...
And to answer your question, once again: number 2, 'cause I like long-haired, glamour, candy, bubble-gum mommies who want to attract as many of their son's friends and bullies as possible (yep, big big NTR fan here)!