Compare a Half-Ogre to an Orc.
You should actually do a comparison after a statement like that. As someone else mentioned, you forgot to mention some very nice bennies the half-ogre gets. Somehow you also forgot to mention reach, one of the biggest reasons the race is so powerful (yes I know in 3.5 reach is just a 1st level spell away, don't remind me).
Any race with an ECL modifier where you don't have to take monster levels (or sometimes, even if you do) looks badly when compared at lower levels. Its a fact. So don't compare them at level 2 and announce one of them "weak" (which I find a tad ridiculous).
Also, a Rog1/BrbX is not the smartest build - you're trading a level of barbarian advancement (which is nothing to snub in 3.5) for 8+Int skill points (and youre an orc, basically you have a low Int) and sneak attack (something a barbarian isn't necessarily going to want to bother with). And then adding that damage as if the orc barbarian is going to get a sneak attack every round, and mentioning that they are better at range?
I disagree. Half-ogres are the most powerful +1 race or a slightly weak +2 race. Genasi are a slightly weak +1 race (compared to other +1 races).
Technik