[quote=@ImportantNobody]
<Snipped quote by MelonHead>

I'd choose the 40mm just because I'd think it would kill me instantly rather than burning to death. Neither is survivable with any hit other than an extremely glancing blow.
[/quote]

That in itself is telling, I'd choose the 40mm because it would be a cleaner less painful death and there would be a better chance of me surviving if it didn't hit me in the head or torso.