I run 27s on my 700
Mine are light and I have no power loss or regrets , whatever you choose just be weight conscious and you will be happy . The GBC dirt commanders have been recommended to me and they are under 30lbs apiece. Bighorn 2.0 is a light smooth riding tire.and there are many others.
Tire width has alot to do with it also. Which also effects the ride. I could scrub my executioner 27x10s up front with a 2.5 lift but that was at full lock and in a nylon bind. I think the 5 yrs i had them on i scrubbed like 4 times.
If you want the zillas weight and tread, go with the CST wild thangs. Same parent company, but the wild thangs are a UTV rated tire. Check the weight limit on zillas you'll be over them pretty easily. Pletny of guys runs them, but its the same tire just rated correctly so what's the harm right?