It's always nice when people actually play the game! :rolleyes:
I own both games, and have been a GT4 fanboy for as long as I can remember. This version of GT4 seems to be a rehash of GT3, and for as much time they spent on it, it should/could have been much better!
110" screen, Forza blows GT4 out of the water. Screw 1080i on GT4 as it is mearly nothing but smoke and mirrors. And why do I want to see my projector switch from 480i to 1080i from menu to race? Give me rock solid, no qurikiness 480p any day!
Tracks - Forza kills GT4 in this aspect. Good lord does the scenery look fantastic in Forza. Not to mention throwing the view to street level (the lowest of the 2 first person views) and just look at the detail of the road. I saw someones gum on the ground! :) New York. Times Square. Enough said.
Music - Uh, hello custom soundtracks. Enough said.
Sound - Let's see, unmodded vs modded. I know that my mods took affect because my car SOUNDS different! Never really got that feeling in GT4, but in FORZA my car sounds change with my mods!
Car Selection - As plenty of people noted, why do I want to drive the million Civics in GT4 when I can drive a more variety of cars in FORZA. It's about quality, not quantity.
Car detail is a bit of a toss up for me. On one hand, GT4 looks great! But suffers from jaggies. Take the same car for Forza, it looks great too, but I don't the edges are as sharp and detailed like GT4. However, the reflections ON the cars during replays, Forza wins hands down. There were times where I thought I was watching a race on TV. Very cool. As for IN game, I think Forza holds the same level of detail in their replays as they do in-game. GT4 is close, but I think a bit lacking.
Physics/AI - I am so glad that GT4 fixed their "Ride the rails" routine from GT3. That would have been tragic for their series if they kept it the same. With that said, take the same car, the same track, drive like a mad man, run into the walls, and see what happens. You'll choose Forza to win in a heartbeat. Gone is the rubber-band AI with Forza. Forza's difficulty/reward settings are fantastic too.
Modding - Forza. period.
Fun factor - Forza. I was getting better cars faster! :) And didn't feel "worn" after the 5 or 6th race.
I could go on and on, as there are a ton more things in Forza that GT4 has. Don't even get me started on Xbox Live with Forza. It is indeed a thing of beatuy, and the level of involvement is the skys limit. So many things to do, see, play, and the ELO system is what it's all about.
Grats to Microsoft and Forza on making a wonderful racing game on the Xbox!