i use lol alot. i think i only used rofl twice EVER. but i dont use lol everytime i laugh out loud. it just the way i respond to something i think was funny even if only alittle. i mean its better then putting a laughing smiley every time right? and you cant really smile so someone will know you think he was funny. so i just use lol
I think LOL is the only one overused, definitely. I am not used to use the other two ones and I don't see many people using it so it is a kind of strange to me seeing those. I use LOL frequently but only when I am on a chat. I prefer using laughing and smiling faces.