What do you want your monitor to do? The XL2370-1 is a standard Hi def PC monitor, while the other two have TV tuners so you can use it as a television too. If you don't need the ability to watch television on it I'd go with the XL2370-1, personally.
I also thought of hooking a tv tuner until I uncovered these models
well i'd want to watch some TV in my studio workspace...thus the find. I use CAD/Google Sketchup/Photoshop CS4(and the Adobe Master suite CS4) heavily, i play almost all titles in games and am a movie/Bleach fanatic