In what order did you guys side with each faction?
For me:
1st time - Mr. House
2nd time - Cesear's Legion
3rd time - Yes Man
4th time - NCR
1st-House
2nd-NCR
3rd-Yes Man
4th-still working on never finished Cesear
I don't think I'll ever get the Legate ending since I usually take heavy medicine for easy rep gain and thus I can useally save Cesear.
Yes man and Mr. House endings are my favs though. kicking the legion down and then threatening the NCR with death by robot (or giving them death by Robot) made me feel powerful as a player. I wasn't a lapdog by the end of my Yesman play through, I was the winner, I had the biggest army,and every other faction was beaten by me.
Its the closest thing you could geti n an RPG from raising your own faction.
Which is what I wanted to do in a Berthseda game for a long time. (I really wanted to just set up an evil tower in Oblivion and raise an undead horde to ravage the countryside, one can dream)