Is it true that female TI's for the Air Force are more scary than the male TI's.?

Yeah, I would say so. It's quite amazing to see a 5'2 100lb women scaring the crap out of a 6'2 200lb. trainee.

atleast in the army the female drills were definately scarier than the males. i think its because they feel they have to press harder because they are females to get the same effect as males. its worse if you are a female recruit ... they tend to hate that 'i can't do it because i'm a girl' attitude because they've been there and done that and know its simply not true

it'll be hard to remember in the thick of things but whats the worst they can do? yell? make you do push ups, run? they're already doing that so you're fine

Yes,

My female TI threatened to sodomize me with a flashlight. I have no doubt she meant it. Our male TI was big and bad but just not as scary.

The good news is that they aren't allowed to hit you. You just don't know when one is going to snap and forget that they aren't allowed to hit you.

Only to you, I guess.