For me, I'm much less willing to depend on Infernape's capacity to stay in and sweep. Too many scarfers, priority, faster pokes. I'll take moves that let me spam them for max damage and run with infernape. SD to me seems most useful once I already know the opponent's team somewhat. As a wall breaker though, infernape will get its best use and mileage in early to mid-early game, meaning I might not know what the enemy's team has.
Therefore, I'd rather have the spam-able Overheat that doesn't require boosting, and the Stone Edge which will do way more damage unboosted to a switch in (where flinching really doesn't matter).
I'm sorry, but no matter how I look at this guy, he doesn't have the speed or bulk to really abuse swords dance. The greatest plot/dance users of gen 4 have all been bulky (Garchomp and Manaphy) except for luke, who still has awesome resists and priority. Infernape is just not in that league.
If there's an opportunity to go with SD and sweep, great. If not, Close Combat/Stone Edge/Overheat still makes for a great wall breaker with awesome coverage (something Special Ape cannot achieve with only 3 attacks). To me, the capacity to hit everything with just 3 moves and still leave the 4th open in case the rare opportunity presents itself, is where physical ape's real potential lies.
. . . though it'd be awesome if Infernape got a good special rock move next gen.