This is just a fun thread for posting your opinions of which game you think will have better visuals, better gameplay, and which one you're more excited for. We all know which one will sell the most. I'll start.
I'll give the visuals to Gears of War 3. Halo:Reach does look like its going to be a graphical powerhouse but Gears 3 looks like it could be contender for best console graphics period after watching the E3 demo. Halo:Reach obviously will have more going on screen at the same time but I still give the nod to Gears 3.
Gameplay is actually a toss up to me. I haven't been as excited for a game in a very long time as I have been for Halo:Reach, but Gears 3 looks to be the best in the series and I've always been a huge fan of Gears. Beast mode looks BEAST :)
Overall I'm most excited for Halo:Reach and probably most of that is because it comes out next month. Either way both games look to be amazing AAA titles and in the end Reach will most likely be the better game. Its great to be a 360 owner with these amazing games coming out.