I love a good challenge. Interesting theory, lots of flaws:
So basically my question is an opinion one: Do you think that love is an evolutionary mechanism to help us disreguard physical appearance and create a partnership with people that have "less than desirable" genetic traits?
No, because love exists and has been observed as behaviour traits in animals that are not human, which don't have the concept of beauty. So a baby gorilla will be as lovingly nurtured by the mother gorilla regardless of it's esthetics or symmetry (which seems to be how humans judge beauty, according to scientists), a baby alligator will live in it's mom's mouth for a long period of time (I think it's five weeks) without being eaten by her, and none of these animals have the concept of esthetics (and don't tell me that in this case maternal nurturing isn't love, because it invalidates your oxytocin argument)
Do you think that the feeling of connection between two average looking individuals is stronger than Brad pitt and Angelina? You know the saying "a face only a mother can love".
This depends on the individuals and Brangelina. We don't know how commited they are to each other, but I've known lots of beautiful people who end up hating each other, while I've met 'plain' people who hated each other just as much.
And just as a matter of personal experience, I have a friend who is very beautiful (model beautiful) who has never been able to have a relationship last more than two or three years, because when the hormones (here it would be pherormones) wore off the boyfriends (and one husband) would get to know ther real her, and realize they didn't really want to spend the rest of their lives with her.
So I'd say that the idea of beauty (or healthy-gene-carrying appearance) works as an evolutionary trait, because good- looking people have more sex (and more opportunity to pass the genes to the next generation), but love wouldn't be, because it goes almost the opposite, and that would be against evolutionary success- the successful pairing of people that genuinely love each other guarantees that there won't be an interchange of genes except for that exclusive union, keeping gene recombining to a minimum, which is not good from the point of view of evolution.
ps. My pretty friend is very lonely and very frustrated, because she never found the right guy. So this shows that
a- pretty people have feelings just like not-pretty people
b- they are not necessarily any happier
c- they have more chances of reproducing and spreading out their genes (more sex with different partners)
d- people that have successful long standing emotionally rewarding (presumably) relationships have less chances of spreading around their genes, so are at an evolutionary disadvantage.