The gearing on the Ranchers is more different front to back then the 300s are front to back and the Ranchers have 24s on all 4 corners stock, it'll be fine with the same size on all 4s. If you're extremely worried about it want to keep the staggered sizes then be careful with the 25/26" tire sizes. Some tires, Zillas included, have shorter tread on their 25" tires then the same tire in 26". The 25" Zillas will have a 3/4" tread depth, the 26s will have just over 1" of tread.
His: 04 Honda Rubicon, snorkeled, radiator relocated, half Rhino'd, Moose 2" lift with spring spacers in the front 14x7 Highlifter XL2s, 30x10-14 X-Lites
Hers: 05 Honda Recon ES, snorkeled, Highlifter 2" lift, 14x7 Highlifter XL2s, 26x9 Zillas