i've been going to the gym and body building for several months now, and it is a lot of work, but you will look and feel incredible. its a real sense of accomplishment to be able to do verticle sit ups with a medicine ball, or benchpress 200+ pounds.
i by no means have a 6-pack, but i'm not aiming for one, theres a huge difference in the training regiment for it. there is alot more cardio involved in getting cut enough to have a 6-pack. i could definately have one, but i still have some bulk on me because i eat ALOT f protien to keep my strength up, so my "6-pack" doesnt show through.
whether your aiming for a 6-pack or not, stay healthy, work out to feel good. its a lot of work but you feel amazing. you'll see progress, and whether its a cut abs or not, brag about having more muscle, or being toned, or running for 2 hours straight. you put in the hard work to get there, brag a little bit, it sounds egotistical, but for all the effort you put in to get there, you deserve to be.
do all cardio to be very slim and cut. weight train and cardio in balance to be muscular and cut. focus on body building with enough cardio to keep weight off and be healthy for your heart, and you'll be big, have a crazy abs, pecks, and arms, but they wont be as defined