Preorders are even in the US and InFamous will most probably handily outsell Titanfall in Europe. Plus InFamous is an exclusive. So I believe InFamous will start stronger.
However, multiplayer games have better legs, so I wouldn't be surprised if Titanfall ended up out legging InFamous.
No troll is too much for me to handle. I rehabilitate trolls, I train people. I am the Troll Whisperer.