I bought new 16" wheels and fitted A\T tyres 225/70/R16. Reason being I wanted a higher and more robust sidewall. I only do farm tracks and fields off road so bought Cooper AT's. These give the same speedo reading, same MPG and are quieter on tarmac than the factory fitted all season tyres. They do not hit the under wheel arch.
Was going to get BFG A/T's but there is a newer version of BFG's coming out this year which are supposedly lighter, quieter and better in the rain, so I'm waiting.