cold turkey... the first 2 weeks is a bi.tch and it will be controllable afterwards.
but in order to succeed, a total lifestyle change is necessary.
after smoking for 10 years, half of those years I smoked a minimum of 2 packs a day. I just decided to quit one day and never looked back. 12 years running na. I needed alot of distraction. I took up swimming, went to the gym, and found a new girl that's into fitness. I told my girl then if she didn't quit we'd break, and we did. Now she's still a party girl with 3 kids, unmarried.
Ive also been diagnosed with clinical alcoholism, so I applied cold-turkey on drinking as well. 5 years sober. not even wine.