I would say cash games are more about picking your position/table/opponent, while mtt is more of a sitting down and going with what you're given. Both are poker, both are it's own way of grinding towards the top and both have their pros and cons.

MTTs, or multi-table tournaments, are popular poker tournaments and are played all across the globe. These tournaments are known for their huge payouts and exhilarating poker action. MTTs are comprised of many different tables, each with 9 to 10 players who are all competing for a seat at the final table.