I'm partial to big tittied gingers, but then that's just me being narcissistic. Also, not to sound cliche, but personality really does matter with hotness. You can be the hottest girl in the world but if you're a bitch, no one will like you. There's a blonde girl in my vet school class who is really hot, but she's so mean and cold that it makes her seem much less attractive- like to the point where I forget that she's hot.
Also I like green eyes, especially on redheads. (here's looking at you OceanEyes )