The same teams pairing up successfully several times is pretty rare. It happens less than it seems to, because even if two teams are "above the pack" at an event, they're still more likely than not to be on different alliances. Look at all the factors in play for your question: the two teams have to be in the same state, really good not only over a long period of time but also particularly good in the same years, going to many events, and going to many of the same events, and they need quite a bit of luck.
As a result, there are only 6 pairings that have more than 3 event wins (including cmp & division wins separately). 16 more pairings had 3 wins. The rarity is what makes the 1114/2056 partnership so special; there's nothing even remotely like it.
Code:
Team 1 Team 2 Wins
1114 2056 14
67 469 5
254 971 5
1114 1503 5
179 233 4
217 469 4
Interestingly, all these pairings are teams in the same state/province. A few of the 3-win pairings were teams across borders, including 16/148 and 341/2590, or even across a country, like 111/254.