I love Universe Mode so much. I made the rosters from the start of 2011, and so far the rivalries are (without editing matches):
Edge vs. Drew McIntyre for the World Heavyweight Championship
The Miz and Alex Riley vs. John Cena and Randy Orton for the WWE Championship
John Morrison and William Regal vs. Sheamus
Alberto Del Rio vs. Rey Mysterio
Kofi Kingston vs. Dolph Ziggler for the Intercontinental Championship
Beth Phoenix vs. Natalya for the Divas Championship (Friendly rivalry say the commentators during their matches.)
AND Wade Barrett attacked Michael Cole two weeks in a row, after losing his matches.