Buried alive would be worse IMHO. Burning is faster than starving to death in a dark hole.
I was lit on fire once and as bad as it hurt my adrenaline kept me from feeling a majority of the pain. The worst part about burning was not being able to breathe since all I was able to inhale was burning gas. I was on fire for less than a minute before I passed out. I feel like if you were buried in an avalanche you would have way more than a minute to think about stuff and not be able to breathe. I'll pick fire again if I had too, also I get very claustrophobic.
being burried alive is worst..
Burned. Being burned would be a very painful way to die. If you were baried alive, you would be scared, but the way you would die is better. You would die by suffocation, which would not be that painful.
Eaten by a shark.