z1ggy
Lifer
I think it's also the case that if you're trying to lose A LOT of weight (like I am, started at 308 in March of 2014, as of this morning i'm at 240), then building up the underlying muscle can help stave off the loose, floppy skin thing that happens to some people. Even that is predicated upon genetics, some people just have better skin elasticity.
Congrats to you, glad you took the leap into fitness.
There's plenty of better qualified folks on here to give advice than I am, but I'm a firm believer in weight training. I think OP will see faster, more drastic and pleasing results if he commits to a lifting program.