I bought both as well. Saw the deal over at Target where you buy two games and get one free. So I got both. Now with that outta the way...I highly recommend you get both. They're both so extremely fun in very different ways. If you like slower and more methodicall races, I'd go for Forza H. High spees, balls to the walls fun action: NFS. At first I enjoyed NFS more, for what it's worth...but after playing more Forza I'd say they're both awesome...and this is coming from a guy who never plays racing games...I'm a noob....these are my first two 'real' racing games.

Anywho...hope you make your decsion!