So, I'm no hard-bodied, 6-pack wielding expert either, but I believe that some people try to post extra smart-assy, crass remarks in response to Jake Benson's posts because they think it will impress him. I hope it works, I haven't yet received feedback on the subject.
As far as the abs go, I've been using the swiss ball for about 3 years on the recommendation of a friend who uses it to stretch her bad back (she had a slipped disc, I have a reoccurring tenderness due to a snowboarding incident). If your back doesn't take well to a lot of floor exercises, I highly recommend it. I'm always learning a new variation on the use of the ball, so I have been able to keep it fun while toning up and more importantly strengthening quite a bit.
Again, do I have a crazy hot 6-pack...dunno. I'm too soft to see it clearly (soft hills). They're there when I sneeze, and when I get diarrhea and am dehydrated, it looks GREAT! I'm proud that I am easily 300% stronger throughout my core than I was 3 years ago, so I know it works (used to I couldn't do an incline fuckin' sit-up, Now, 100 weighted no problem).
My point is, as my trainer friend says, work hard enough to get the abs, the necessary fat should burn around 'em. Of course, diet and cardio are key. And change up the routine to include all sets of abs, and confuse the muscles. Some days I just do Ab-Ripper X (from the p90x series) and feel More than accomplished.
My reading tells me, if you want those Poppin' Magazine Abs, cable crunches and hanging leg lifts (whatever it's called when you extend your legs out while suspended from a bar...this being the ONLY Ab exercise I can't touch yet; my legs are half my weight) are the way to go.
What I Don't care to achieve is the ultra tight, dry, Abs 'n Ribs look. Somethin about your body tells me that's not your goal either, but moreso a toned, rounded body. (Not FAT rounded, just rounded -vs- angular). Remember that lower back and glute strength will improve posture and help pronounce your abs, at the beach And at rest.
There's probably swiss ball videos out there, Hell, even free ones on Youtube that'll better explain the most effective usage of it. I just ask the hottest guys using the swiss ball at the gym what they're doing.