Ok, I'll start. I can't call it a rivalry because it's one sided, due to the fact that although we appear to have almost identical development strategies, the other team is better. Ok, my two top TTers are close, on par or maybe better than the other team's 2nd best TTer, but the other team does currently have the best TTer in the CFF world, plus have greater depth in their TTers. More importantly though, whilst we both have sprinter & cobble interests, the other team has more of them, outgunning mine to a level that I'm not in the ballpark for consideration by the other manager, except for maybe individual races, and will probably develop their cobblers & sprinters more for a better diversified team in upcoming seasons.
So it's more like a quiet envy & hope I can catch up to the other team's level. I am of course talking about TeaMetal.