Man to man marking and and high pressure don't brings you more experience just because they work harder but working harder can mean a better possession of the ball for your team, more chances to score, more chances to create assists, recover the ball, etc which in the end will give you better results so more experience, lol, I hope this doesn't sounds to complicated.

Just be aware that starting the game with high pressure can be a pain in the ass in the second half. If your team condition goes to low it might have an opposite effect.