slight tilt to the left
my penis is downward curved... it may sound strange but i am proud of it... BUT Part of me envy of a straighten penis
Mine has an upward curve....told it hits the spot! 
Mine tends to lean a little to the left, doesnt seem to cause any problems
Haha this thread got bumped and I'd forgotton all about it - clicked on it thinking "what a rubbish title"....guess it was *my* rubbish title since I started the thread!
Glad it's bounced back though - it's an interesting topic :)
Adx
Mine is straight and curving upwards, I have 12 inches but dont use it as a rule. (old works joke) to give my wife 12 inches I screw her twice lol
I like slightly curved, then its just wiggling around a bit so it gets the g spot. I dont know how you tell on yourself as a women?? lol. The only use I can think for being able to point towards the floor on a man is you can get a better angle for deep throat when you're on your knees!
I don't think I'm bent or curved in anyway, well not that I've noticed, or been told.
My OH has an almost visually unoticable curve slightly downwards, but it feels wonderful doing doggy style.