Obviously I don't think any alliance is unbeatable, but thinking of a trio to bring them down is pretty tricky.
I definitely would have 968, they can hurdle pretty much just as well as 1114, but their hybrid is a bit lacking.
After that, the second hurdler is kind of up for grabs. Teams that I am thinking of include 195, 233, 254, and 330. 195 is a solid hurdler, one of my favorite bots this year, and had a pretty good hybrid from my memory. I still remember when my team was paired with them against 217 and won. 233 obviously a good hurdler too, but not quite as good. 254's capabilities are identical to 968's, but 968 seemed to drive better all year, and 254 had some troubles when defended(by 8 at SVR and 148 in Galileo finals). Finally, 330 can hurdle with the best for sure. If I had to pick one now, I would pick 330.
The third bot is extremely hard to pick, and it depends on the strategy. 8 is the most aggressive defender, and it had some success in trying to stop 1114. However, my picks so far can't match up with 1114's hybrid, so I would consider having 25 playing a nonhurdling role. Their hybrid is almost as good, knocking off 2 balls too, and they can hurdle if needed, but not that fast. Overall, if it weren't for hybrid, any team that can play a little bit of defense, make good laps, maybe knock off balls efficiently, and be a good partner would be a good pick for this, and that would include my team.
My alliance that MIGHT beat the SimChicken Wranglers:
968, 330, 25
It's kind of risky because 25 is not a defender, so unless they adjust, 1114 and 217 could score at will. 25 is my selection purely for their hybrid. For some crazy defense, replace 25 with 8, for laps, replace with 115
. Of course, I don't know much about the lapping bots of this year, so my team isn't necessarily the one.