I have a Super D35 on the rear with ARB lockers and 33's. So far, so good. I also took the oportunity to change to the 31 spline version, since i was putting the locker in at the same time, it was the same cost, but more robust. Now, the reason that people are saying that the SD35 is not as great a choice as the D44 or F8.8 is that the axle is not the only issue with the D35; the housing is also a problem. A friend of mine that came with us on the river trip (white YJ on 35X12.50 creepy crawlers) actually broke the housing of the D35 (and, as you can see in the video, that was not hard wheeling; although, it may hae been "softened" from previous wheeling trips). Also, the D44 will give you better gearing options.
I will not presume to tell you what to do, but, if I MYSELF were to do it all over again, I would go with a D44 from an isuzu rodeo or honda pasport and get the rear disc brakes in the process. Having said all that, mine has not given me any problems so far, but I try not to resolve my stuck issues with excesive use of the right foot!
I also recommend doing the gears at the same time as this mod (if you go ahead with the SD35), as there is no additional labor (since you already need to tear the axle apart).