Owens Corning 703 vs. Roxul Safe 'n' Sound?

I have a number of Owens 703 panels (with Oxford transparent cloth) and wood frames. They are very effective and haven't degraded over time, including having been moved to a couple of different homes. In lively rooms w/dynamic driver speakers they were effective at first & second side reflection points, & on the ceiling at first reflection point. Some I know have dramatically increased perceived depth of soundstage by placing one absorptive 703 at the midpoint between the speakers on the front wall; especially in rooms setup "landscape" w/speakers on the longer wall. 
In my current electrostatic live end/ dead end setup they work great on the wall directly behind the speakers. The spares are useful on the side walls close to the speakers, but don't have nearly as much side-reflected energy to deal with as when I used cone speakers.
Overall, I think Owens 703 & 705 are both good choices and reasonably priced. Cheers,
Spencer

@bdp24 I feel your pain, with both HD & Lowes the inventory often doesn't match what online says is there. A frequent time waster. 

Your plan sound solid. If you do want more low freq absortion (i.e. bass traps for those front corners, rock wool was what was recommended to me by an acoustics specialist who consulted on my room and built my custom stuff. The 703 for wall and freestanding panels, but rock wool for the corner bass traps to maximize absorption relative to their volume. Cheers,
Spencer

Excellent point about the thickness of 703 being so important at that frequency, but low frequencies are more likely to gather in the corners and the panels behind you on back wall will most likely only affect mids and highs so I would focus on absorption properties at those frequencies for you back wall panels. Corner traps behind you can use air gaps to absorb even deeper in the low frequencies. Corner traps in all 4 corners are the best way to deal with LF issues. The stuff behind your head can help with reflections, flutter echo, etc.in mids & highs. Cheers,
Spencer

Ethan has a Manufacturer's forum section on audioasylum that is full of great info relating to room acoustics and treatments. Much of the content is many years old but still among the most helpful I've seen. 
Lately, I've seen his name brought up in some controversy on other topics which I don't recall, but regardless, he is a top educator on room acoustics and he donated much time and energy in helping other with similar situations. Cheers,
Spencer

@bdp24 Glad to know it's useful source for you. My take is that Jon Risch was one of the first to encourage others to do DIY builds of acoustic treatments and gave detailed recipes to build stuff like bass traps. He leaned towards cheap and focused only on results, even if it looked so bad that spouses would never accept them in a visible part of their home. Ethan then started RealTraps, which while affordable in audiophile terms (though more expensive than GIK I think), also had fit and finish that make them a little more visually acceptable to many. 
The guys selling panels with art on them have crossed the bridge in terms of looks, but I have no idea how they sound...Cheers,
Spencer

@bdp24 Hey Eric, It's been almost two years since this conversation! How did your room treatment decisions and implementation turn out. Inquiring minds want to know! Cheers,
Spencer