The short answer is, the number of meals you know you can consistently get each day and the number that feels the best for you. If you hate preparing 6 meals a day and finding time to eat that many meals in a day is difficult, then don't do it. There is nothing ideal about the number of meals In a day that supersedes your ability to be consistent day to day. If you enjoy eating 2 bigger meals each day, and you know you can do this without a problem day in and day out, stick with 2.
Will the number of meals a day reflect in your results?
Unlikely! As long as you are getting enough protein throughout the day and your calories are in check then you are good to go.