Hm, depends on the maps for me.
Rainmaker on Camp Triggerfish, Splat Zones on Bluefin Depot/Blackbelly Skatepark and Tower Control on Bluefin Depot/Kelp Dome are my favourites.
Some combinations suck like Rainmaker on Blackbelly Skatepark/Kelp Dome, Tower Control on Moray Towers or all ranked modes on Saltspray Rig (it's really made for Turf War and it's one of my favourites there).
And oh, I like ranked modes more nowadays because there's no tension in Turf War and you get much more credits in ranked.