Best use of UT (green) points?

[tiptonhr]

Despite my dislike of playing humans online, I have spent a decent amount of time enjoying the Ultimate Team mode - I mainly play Challenges and Solo Seasons against the computer - and my Ultimate Team is at 90 OVR. I have not spent any IRL money thus far, but last night I had some expiring Playstation Points that I decided to spend on Ultimate Team points (the green currency.) Anyone have advice on what the best (most efficient) use of these would be? I have about 3,000, so I can't afford the more expensive green packs, but where do you think I can get the most bang for my buck on the cheaper ones?

Thanks in advance for any advice.