running4bhs

Hey guys just wanted to get some opinions on different types of rims. I want to go with some 35's A/T or M/T and I have a 3 inch leveling kit on the front of my truck. I play in the sand dunes a lot and I also take my truck off-roading back home in the foothills & mountain trails so I would like a good off-roading rim, but I am not sure if I should go with a 17 or 18 inch rim. Right now I have 16.5 x 12.50 (American racing)with some BFG 33's A/T, but they are a little small for the lift. I also need the 4.5 backspacing because I will be upgrading to the 5.5 inch fabtech lift kit for my truck after my wallet recovers from the rim & tire project. What would you guys suggest for this & thanks in advance for your input.