What would be the best approach to get rid of this post mommy pooch? (Photo)

It appears you have a typical pooch from having kids which is caused by stretching your muscle fascia while pregnant. Neither liposuction or emsculpt will fix this. Your problem is not fat it is the stretched abdominal wall. It will take a tummy tuck to repair the fascia to flatten your abdomen. To be sure be examined in person and discuss with your plastic surgeon. Good luck.

My advice, since you are active fit and have 3 children, would be to start with Emsculpt. It is the least invasive procedure that can address 3 of your issues simultaneously without much of a time commitment, surgery, pain or downtime. Emsculpt will burn fat, build and sculpt your abs and also bring your abdominal muscles closer together to close the gap.