Yeah, I'm looking to boost right now. I tried playing a random online match, and the 2 people I've played so far have both rage quit. Which sucks becaue you don't get squat from the time you spent playing.
Also, you can just create a ranked match and invite the person you want to play.
Someone post in here and let me know if you'd like to boost the 2 online trophies. We can just take turns and it should only take 2 games. Each game the winner can get the online victory trophy & the "win by 18 points" trophy too.