Ok thanks guys, I just did google search and found that full body is a better way and I agree with it aswell. I'm just starting with a 30+ % BF and I'm obese, I'm not fit at all to ask this question.
Thanks.
Well, I know this is a SEO forum.... If you want to be more serious about this, jump on the body building forums.
That aside, I am a personal trainer and here's my opinion based on what you asked. If you do full body, you'll get burnt out. The glycogen levels in your body, when lifting - will burn out, and you'll become extremely week if you do this full body idea (meaning you wont lift as heavy). I never understood when people tried this full body nonsense.. Never understood the bro split either (one day upper half, one day bottom half). I go to the gym 6 days a week, but if this is too much, go 3 days a week. If you go 3 days a week, just do push pull legs. By doing this, you'll be able to direct all your energy into 1 of 3 muscle groups. You wont feel burnt out, and have more energy to really break down those muscle groups (which in turn, makes them grow). Like I said; push (chest, shoulder, tris), pull (bis and back), and the 3rd day do legs.
Since you said you were obese and 30%, I would incorporate 30 minutes minimum of cardio every time you go to the gym (ONLY AFTER) you work out. It's important to use all your glycogen levels doing the lifts, and only then - do cardio. Some people make the mistake of doing it first, don't be that guy.
Also - eat clean (rice, chicken, fish, vegetables, etc). Eat 1gr/protein per lb of body weight to maintain muscle; 1.2/1.5 when cutting.
Hopefully this helped.