Like the others said, depends on why you ride.
I find 700c is faster on road like conditions but I can lead on loose pack or single track with 26" but so much of that depends on the rider.
Also, 700c gravel is just a fad now like 29 and 27.5 were, like double road cranksets became triples and now single. Yeah they are each nice in a way but in 5 years there will be a "new" standard everyone feels a need to rush to and that "in" bike will be "out". Eventually all those fads wear thin and you are left riding what works for you both performance wise and economically.
Ps. Great looking bike
