I wouldn't go that far...
It's more like, how much performance do you need? Or want...
SAW (Camburg) bolt-in parts are like the 90% solution. DR bolt-in stuff is like the 95% solution. I'm just making up numbers for effect, BTW...
If you're ordering custom valving or something, they're extremely similar to the point personally I wouldn't call one better than the other, since now you're talking whose raw materials are better or whatever.
Ask MJ on the SoCalTundras forums, I think he's running DR front and SAW rear. From my own experience, SAWs work fine until the N2 charge bleeds off, then they go to hell and need rebuilding...I have no way to check (til now?) so it's been use 'em til they bleed, then send 'em back for a rebuild. Make sure the charge stays up, maybe they'd be fine. I have not had any problem in six years with pitting or corrosion on the shafts of my 2" body SAWs, at least nothing that would create a damping issue and certainly nothing visible to the naked eye...that's six years of Ohio and Colorado winters and a lot of abuse. If you're really hurting them, they'll need a rebuild every couple years. I would guess the DRs would be the same, if you really are beating them...daily driving they'll last a long time I'm sure.
I would expect the DR products to hold up equally well if not better since they (DR) claim their shafts are harder (ha ha) than the material used by everyone else. I would expect tho that seals and wear bands will wear equally fast as anyone elses. Their charge valve is supposed to lose N2 slower (or not at all) than the Schraeder valves used by everyone (?) else.
You can get very similar (ie you and I won't be able to tell) performance from both, similar length shafts, damping, etc...so like he said, pick your favorite color

. Customer service has been reported as very good from both SAW and Donahoe (SAW is where you'd go for a rebuild, not Camburg, they are a reseller). AFA Camburg, Scott is very helpful and a good guy...also Ryan from SAW and Kreg Donahoe...all are on the board and check in once in a while.
-Sean