Oh goodness, I am in a SIMILAR boat as well. Maggie is 11 months and not completely trained in either aspect. I've tried and tried to make her completely trained to go outside.. and she's doing better. BUT, she doesn't hesitate to pee or poop on the floor if she feels like it. I take her out very frequently and everything.
I would love to have her trained on the pads. When I leave my apartment, i put a baby gate up in the kitchen. She gets food/water, a toy, pee pad, and if i'm gone long enough her crate or a blanket. She responds really well and pees or poops on the pad in there. However, if she is not locked in the kitchen, she will not go on the pad. I've come to realize that she does not like to do her business on the cold tile floor. This is why she loves to do it on my carpet.. i mean who wouldn't? soft and warm lol. So, her only semi-soft option in the kitchen in her pee pad. I WISH she would catch onto the concept completely. There is ALWAYS a pee pad out but she would rather go on the carpet