Normally each game has 1000 points available to get by doing certain levels or achievements.
There are some games that are very easy to get 1000 on
Fifa RTWC
Fifa World Cup Germany (although 500 from this is from the challenges which are a little hard)
NFS:MW - just a little time consuming if honest
Fight Night Round 3
Open Season
Cars
Just to name a few
The rest of the games can be a little more challenging however the further you progress the more points you have - obviously this system benefits people that have more games than others.