(The only advice I will give this year.)
Drunk dialing is always a bad idea. You won't get to finally let out those pent-up feelings. You won't get a chance to form that rare connection you've always wanted, but couldn't get past the facades, ego-trips and emotional barriers that were always in the way. No. What you say will only make sense to you and the bum that lies under the underpass waiting for Jesus to ride by on his tricycle. Scary thing is it might still feel good to you at the time.
Keep in mind that if you're drunk dialing someone to begin with, either you really didn't want to talk to them. Or, they really don't want to talk to you. Either way, you're better off leaving it alone.