Axl: usually he goes for lips but when you're doing stuff he kisses your forehead and tries not to get in your way.
Slash: he likes to kiss your back, at first you thought it was strange but it eventually had grown on you, he also secretly kisses your nose when you're sleeping, not that he would ever admit but he loves kissing your face all over whenever you're asleep.
Duff: since he towers over you, it's convenient for him to kiss your head but he also loves picking you up and kissing you on the lips, he loves whenever you wrap your legs around him.
Steven: he likes to kiss your cheek, it's sweet and innocent and sometimes he even likes to kiss your hand. he says he kisses your hand whenever you look like a princess, which is usually when the two of you will attend an event together and you wear a dress.
Izzy: of course he thinks it's the most romantic to kiss you on the lips but he also likes to kiss your neck and down to your shoulders. occasionally he will kiss your hand or the top of your head but every morning when you wake up, he plants a sweet kiss against your lips.