I'm in need of some advice. I would like to buy a new winter coat. I'am 5'2 and have a pear shape body. I love my curves. But don't want to look frumpy. I really wanted to buy a wool pea style coat. But they come in so many lengths. What length of coat would look good on my body type.

Above the knee, if its fitted. Long long long coats do not look good on us. I'm 5'3, so I feel your pain!
I bought a mac from new look, not a pea coat style, but its amazing. its got a really deep v, and its belted, and I just love it.
Avoid princess collars....
Deep V's all the way!