I'm Male,25 travelling alone to thailand.My trip will last only 3 days.where to spend more time?bkk or pattaya?

I'm on very tight budget.I'm going only 2 enjoy nightlife.So, i want best nightlife areas as well as cheap too.good body mage and mage parlours around.Time is too little to go here and there. so, kindly suggest Pattaya or Bangkok to spend 3 days.