A big part of ranked play in SMITE is the picks and bans phase. It's something like a chess match between both teams, as they ban and counter pick the enemy's gods. Many times, the game is decided before any actual fighting by the picks and ban phase.
A great way to throw off the other team is to pick a "flex" god and make the other team try and decide where the god will be played. These are Gods that can play different roles, therefore giving your opponent less information on how to counter you. Flex gods are infinitely useful. Here's a look at the 5 best ones right now.