To be quite honest with you, Getting others opinions is great as it gives you an idea of what to expect, But you have to understand the procedure itself, pain, problems VARIES from person to person. One person may be fine with just a local anasthetic whereas some may need to be fully put out. Some people have an easy extraction, Whereas some have their Wisdoms buried under under teeth growing in wrong directions.
As for my procedure, I was just given a light dosage of Novacaine for numbing as I had already previously explained to my doctor I was constantly under pain relief while taking Oxycontin. So the meds I was already taking for a severe back injury managed constant relief during my procedure anyhow.
If your worried about it that much, Just request to be put out. Depending on the facility, Some frown upon completely putting you under. Not trying to scare you, There have just been incidents where a very few folk never woke up. But I'm almost positive these where in situations where the facility itself as well as its practicing doctors were more than a mile shy of certified.
Good Luck.